At least seven people were killed and seven wounded when a car bomb detonated during Kabul's busy morning rush hour Wednesday, an interior ministry spokesman said.

The Taliban killed at least five people in a fresh bombing in Kabul on Thursday in yet another horrific attack on the Afghan capital as the US and the insurgents negotiate a deal to see American troops leave the country.

US and Taliban negotiators are "at the threshold of an agreement" to end 18 years of conflict between them, Washington's top negotiator said Sunday as he concluded their latest talks.

The death toll from an Islamic State attack on a Kabul wedding at the weekend has reached at least 80, an official said Wednesday, as the Afghan capital still reels from the deadliest blast in more than a year.

At least 63 people were killed and 182 wounded in an explosion targeting a wedding in the Afghan capital, authorities said Sunday.

Scores of people were wounded when a Taliban car bomb detonated in Kabul on Wednesday, sending a massive plume of smoke over the Afghan capital and shattering windows far from the blast site.

At least 50 children were among nearly 100 people wounded Monday when the Taliban detonated a powerful car bomb in an area of Kabul housing military and government buildings, officials said.

At least two blasts struck a large ceremony Thursday attended by Afghanistan chief executive Abdullah Abdullah and other leading government officials, killing three people and injuring 22 others.

The death toll from a suicide bombing targeting a security forces convoy outside Kabul early Tuesday jumped to 12, officials said, with eight civilians killed in the latest Taliban-claimed attack near the Afghan capital.

Minutes after he took a seat among hundreds of religious scholars at a ceremony for the Prophet Mohammad's birthday in Kabul, a huge explosion shook the room, throwing Ahmad Fareed to the floor.

At least 40 people were killed in a suicide bomb attack on a meeting of top clerics in Kabul on Tuesday, officials said, in one of the deadliest attacks to strike the Afghan capital in months.

Six people were killed when a suicide bomber blew himself up in Kabul Monday, close to where scores of Afghans had been protesting against Taliban attacks on the minority Hazara ethnic group.