KABUL, Afghanistan -- At least two members of an Afghan militia opened fire on their fellow militiamen in the western Herat province, killing 12, in what provincial police on Saturday described as an insider attack.
Herat police spokesman Abdul Ahad Walizada said the attackers fled with the slain militiamen's weapons and ammunition, adding that Afghan government forces had regained control of the area.
Meanwhile, a sticky bomb attached to an armored police Land Cruiser SUV exploded Saturday in the western part of the capital, Kabul, killing two policemen and wounding another, Kabul police spokesman Ferdaws Faramarz said.
Faramarz did not specify the identities of the casualties. However, two members of the Afghan police force, speaking on condition of anonymity because they were not authorized to brief the media, said Kabul's deputy police chief Mawlana Bayan was wounded in the attack.
No one immediately claimed responsibility for the bombing in Kabul.
In the southern Helmand province, a suicide car bomber targeted a police compound late Friday, killing one policeman and wounding two others, provincial police spokesman Zaman Hamdard said. The attack took place in Lashkar Gah district on the highway between Helmand and Kandahar provinces.
Also in Kandahar province, a suicide car bomber and multiple gunmen attacked an auto workshop belonging to the Afghan intelligence agency on Saturday but inflicted no casualties, provincial governor Rohullah Khanzada said. He said at least four attackers were killed and that an operation to clear the workshop compound was ongoing.
No one immediately claimed responsibility for the attacks in Helmand and Kandahar.
The Islamic State group has claimed responsibility for multiple attacks in the capital in recent months, including on educational institutions that killed 50 people, most of them students. IS has claimed responsibility for rocket attacks in December targeting the major U.S. base in Afghanistan. There were no casualties.
The violence comes as the representatives of the Taliban and the Afghan government earlier this month resumed peace talks in Qatar. However, the negotiations were off to a slow start as the insurgents continue their attacks on Afghan government forces while keeping their promise not to attack U.S. and NATO troops.
The stop-and-go talks are aimed at ending decades of relentless conflict. Frustration and fear have grown over the recent spike in violence, and both sides blame one another.