The threat from the terrorists who attacked Mumbai lingers as a a bomb planted by the Islamic militants was discovered today in the city's main train station.
The large bomb was defused, making it the seventh device found since the last of the terrorists was shot dead four days ago. Two bombs exploded in taxis and four have been defused.
The lethal luggage was discovered today among the bags and suitcases that were strewn around the station by terrified travelers when the shooting began last Wednesday. The luggage was collected and the station was searched for additional explosives before it was declared safe and reopened last Thursday.
Sub Inspector Sachin Gawade of Mumbai's bomb squad told ABC News that the bags that were never claimed were then searched, revealing one packed with a 8 kilogram device fitted with a sophisticated timer.
The bomb was very similar to bombs found at the Taj Mahal Palace Hotel when fighting subsided there over the weekend, Gawade said. It was not immediately determined when the timer was set to go off, the officer said. The timers can be programmed to go off hours or even weeks later.
The device was uncovered as growing anger in India boiled over into street protests, and U.S. Secretary of State Condoleezza Rice suggested that al Qaeda may have had a role in the attacks that killed at least 171 people and wounded hundreds more.
Speaking in New Delhi, India, Rice tried to defuse tensions between India and Pakistan by telling Pakistan it has a "special responsibility" to cooperate in the investigation in an "urgent" manner.
The lone gunman captured alive in Mumbai has told interrogators they were trained in Pakistan. U.S. officials say the captured gunman's account corroborates other intelligence that points to the role of the Pakistani-based Lashkare Taiba, a group affiliated with al Qaeda that opposes Indian rule over the disputed state of Kashmir.
Rice said it was too early to say who was responsible for the attack, but added, "Whether there is a direct al Qaeda hand or not, this is clearly the kind of terror in which al Qaeda participates."
She later clarified her remarks, saying, "Let me be very clear: We are not saying al Qaeda is the perpetrator here. There are elements of this -- the sophistication of it -- that remind us that these extremists ... that they are perhaps learning from each other, they move in the same circles. But clearly the sophistication of the attack was what I was addressing."
The lone survivor has told investigators that the 10 militants who terrorized Mumbai were from a group of 24 who were rigorously trained for a year in Pakistan. That leaves 14 others still at large and officials fear a second attack on the same scale of Mumbai, law enforcement and security sources tell ABCNews.com.
Indian Anger Grows
Security officials say they have been warned by Indian and U.S. officials that a second attack on the Indian capital city New Delhi is possible.
Rice was to meet with Indian Prime Minister Manmohan Singh and other top officials.
Indian officials, facing public fury for failing to intercept the attack or end it quickly, have called on Pakistan to hand over a list of 20 suspected terrorists.
Pakistani President Asif Zardari said any of the 20 suspects wanted by India would be tried in Pakistan if there is evidence of wrongdoing.
Pakistan and India, which both have nuclear arsenals, have a history of enmity and have fought two wars.
Rice urged Pakistan to cooperate fully with India's investigation.
"I have said that Pakistan needs to act with resolve and urgency, and cooperate fully and transparently," Rice said during a press conference. "I know too this is a time when cooperation of all parties who have any information is really required."
Indian anger -- at Pakistan, their own leaders, even the U.S. -- was clearly visible across the country today. There were street protests in Bangalore, Hyderabad and other cities, but the biggest was in Mumbai.
Several thousand protestors holding banners and waving Indian flags gathered near the Gateway of India and the ravaged Taj Mahal Palace Hotel to protest the attacks on their city.
"This is the only way we can express our feelings," said Sinjay Ghad, 45. "The politicians are sleeping."
The businessman, wearing a "We Are United" flyer attached to his shirt, shouted "Our politicians are useless" along with several hundred others in one corner of the protest.
The nearby Taj Mahal Palace Hotel, where at least one terrorist held off Indian commandos through much of last weekend, is boarded up and smoke stains cover part of one side.
"We want peace in the city - not pieces of the city!" and "We would prefer a dog visit our house than a politician" were among the dozens of banners held by the protestors and peace marchers.
English teacher Suman Keluskar, 48, said the U.S. has inadvertently aided attacks on India by Pakistani militants.
Mumbai Lacked Giuliani's Post-9/11 Leadership
"Pakistan uses money from everyone, America included, to attack India," Keluskar said. "I do feel very hurt. I feel that America should be diligent in [protecting] the end use of that money."
A cross-section from the Mumbai community -- businessmen, young college women, elementary school-aged children -- came together for the first major protest after the attack.
"What is happening right now is not a peace rally, " said Gargy Sarkar, 19, a student in mass media at a local university. "There is a lot of shouting and a lot of anger. We can't stand what is happening."
Since the attacks here one week ago, most of the anger has been directed at the politicians for not protecting them.
The anger is justified, said Milind Deora, MP from the Congress Party who represents South Bombay. He said that the politicians did not show the leadership that was needed after the attacks, leadership that was shown after Sept. 11 by New York City Mayor Rudy Giuiliani.
Their simmering anger at Pakistan was also evident as thousands of people were chanting "Down with Pakistan!" in Hindi.
The Associated Press contributed to this report