The Latest on the London Terror Plot Investigation

ABC News' London bureau is pulling together daily updates on the investigation into the foiled terror plots in Scotland and London. Below are the latest threads the bureau is following.

THE ATTACKS

CENTRAL LONDON

Shortly before 2 a.m. on Friday June 29, police were called to a suspicious metallic green Mercedes in central London. It was parked near busy nightclub Tiger Tiger in Haymarket. We now know the car contained gas cylinders, 60 litres of gasoline, and nails. A second device was found in another green Mercedes in an underground car compound, after it had been towed away for being illegally parked on Cockspur Street, just a few minutes walk away from the first vehicle. It also contained gasoline, gas cylinders and nails. Police say the devices were "viable" and "clearly linked."

GLASGOW AIRPORT

The following day, Saturday June 30, a Grand Jeep Cherokee, license plate number L808 RTD, crashed into Glasgow Airport's Terminal building at 3.15pm local time. Eyewitnesses described it being driven at speed and on fire. Strathclyde Police have confirmed this attack is being linked to the two car bombs in London's West End.

ABC News has reported that there were at least three gas canisters inside the vehicle that was crashed into the Glasgow airport terminal. The canisters were surrounded by fuel containers. They were removed by explosives experts and officers from British counter terrorism. ABC News understands the intended method of detonation was less sophisticated than the London bombs, and the vehicle did not contain nails. Video shot at the scene by ABC News shows a number of canisters standing by the jeep.

In addition to the bombing suspect, five people were taken to the Southern General Hospital Glasgow. Four have since been discharged, and one remains in hospital "in a stable condition" according to the health board in Glasgow.

THE ARRESTS

1. At Glasgow Airport a male aged 27 was arrested on Saturday 30th June. He remains under armed guard at the Royal Alexandra Hospital, Paisley, and hospital officials tell us he is in a critical condition due to the burns he suffered. According to Glasgow Police he is believed to have been the driver of the vehicle.

2. At Glasgow Airport a male age 27 was arrested on Saturday 30th June. Initially held at Govan high security police station in Glasgow, he was moved to Paddington Green high security police station in London on Monday 2nd July. ABC News has named him as Bilal Abdulla, an Iraqi doctor, who worked at the Royal Alexandra Hospital, Paisley.

3. On the M6 highway (northbound) near Sandbach in northwest England, between junction 17 and 16 in Cheshire, a male aged 26 was arrested on the night of Saturday 30th June/Sunday 1st July. He is now in custody at a central London Police Station, believed to be Paddington Green. ABC News has named him as Doctor Mohammed Asha, a Jordanian who held a type of provisional limited registration which enabled him to work in the British healthcare system under supervision. His father in Jordan has told Agence France Presse that Asha moved to the U.K. in 2005, with his wife Dana, to specialize in neurology. A warrant of further detention has been obtained for police to hold him until Saturday 7th July.

4. On the M6 highway (northbound) near Sandbach in northwest England, between junction 17 and 16 in Cheshire, a female aged 27 was arrested on the night of Saturday 30th June/Sunday 1st July. According to Dr Mohammed Asha's family in Jordan, the woman is his wife Dana. She is now in custody at a central London Police Station believed to be Paddington Green. A warrant of further detention has been obtained for police to detain her until Saturday 7th July.

5. In Liverpool a male aged 26 was arrested on the night of Saturday 30th June/Sunday 1st July. The car he was traveling in was stopped on Lime Street in central Liverpool as part of a policing operation and the man was arrested. A cordon was put in place as a safety precaution while the car was removed for forensic examination. The arrest was made on behalf of Metropolitan Police Service counter-terrorism command. The man is at a central London Police Station believed to be Paddington Green. A warrant of further detention has been obtained for police to detain the suspect until Saturday 7th July.

6. At the Royal Alexandra Hospital, Paisley a male aged 28 was arrested on the night of Sunday 1st/Monday 2nd July. Strathclyde Police have said he is not believed to be of Scottish origin. On Monday 2nd July police said they obtained a warrant to continue detaining the man for another five days.

7. At the Royal Alexandra Hospital, Paisley a male aged was arrested on the night of Sunday 1st/Monday 2nd July. Strathclyde Police have said he is not believed to be of Scottish origin. On Monday 2nd July police said they obtained a warrant to continue detaining the man for another five days.

8. Somewhere outside of the U.K., a male was arrested on Monday 2nd July by local authorities on behalf of Scotland Yard. British police said they would not disclose where the man was detained, due to "operational reasons."

THE SEARCHES

In the House of Commons on Monday 2nd July, Home Secretary Jacqui Smith said that at least 19 locations had been searched in the course of the investigation so far. Here's what we know:

Houston, near Glasgow in Renfrewshire

Several houses were searched, including 6 Neuk Crescent, which according to the BBC was rented to "Asians" five or six weeks ago. The British Press Association (PA) interviewed eyewitnesses in the area; Maya Logan, who also lives in Neuk Crescent, told them that she had seen a man washing a 4x4-style Jeep outside number 6. She said it was being washed around two weeks ago, and that she had seen it parked outside the property in recent weeks. "I can't remember the colour or the make, but it was a big 4x4 Jeep." A man living nearby Neuk Crescent told the PA how his friend living opposite number 6 had seen two men of Asian appearance going into the house. Callum Graham, 22, of Gravebank Close, said his friend had only seen them once in the past few months.

Liverpool

Following Sunday's arrest in Liverpool, Merseyside Police searched two addresses in the Liverpool area -- PA report them as 80 Ramiles Road, off Penny Lane and Hatherley Street in Toxteth. Haroon Samad, 56, who lives next door to the house on Ramiles Road, said: "I heard a noise about midnight last night, a policeman shouting 'Come out with your hands up'. "All the lads who live there are in their 20s. Three are from Pakistan and one from the Yemen. They said they were students. Police officers blocked off part of Penny Lane in south Liverpool on Sunday.

Newcastle-under-Lyme

4 Sunningdale Grove, Chesterton, Newcastle-under-Lyme. According to residents it is the home of Dr. Mohammed Asha. According to the electoral roll the house is owned by Weaver family. The son of landlady Wendy Weaver (who lives nearby) has told the media that Asha moved in 8 to 12 months ago. 43 Priam Close in the Bradwell area was also searched.

North Staffordshire Hospital, northwest England

British media report that on Monday 2nd July police searched Dr Mohammed Asha's office at the North Staffordshire Hospital.

Paisley Hospital, near Glasgow

From ABC's Nick Watt: on Monday, July 2, police cordoned off the staff accommodation block at the Royal Alexandra Hospital, which they had searched earlier in the day. They did not evacuate the hospital but stopped access for "operational" and not "safety" reasons.

Personnel from Explosives Ordnance Disposal -- otherwise known as the bomb squad -- have carried out several controlled explosions at the Royal Alexandra Hospital, Paisley. On Sunday, July 1, a car was found in the hospital parking lot that police believed was connected to the Glasgow attack. Police said there was no indication that it contained explosives but carried out a "controlled explosion" as a "precautionary measure." ABC's Matt McGarry was at the hospital and reported that there were actually several controlled explosions. Police didn't actually blow up the suspicious vehicle. They were most likely just small detonations designed to set off any larger suspected bomb which could be in the vehicle." On Monday 2nd July the access road to the Royal Alexandra Hospital was closed just before 3pm. A section of the main road outside the hospital was also shut off to traffic. ABC's Nick Watt reported that police confirmed three controlled explosions were carried out on another "suspect vehicle" parked at the hospital.