Six people have been killed and more than 30 injured in a suicide bombing near the presidential palace in the heart of Kabul, according to Afghanistan’s interior ministry.
The suicide bomber had been travelling in a vehicle packed with explosives, but the target of his attack was not immediately clear.
“It was a suicide attack and I saw someone lose a limb and another person lose a hand,” said Mohammad Tahir, a driver whose hands were covered in blood as he fled the area.
Wednesday’s blast interrupted a period of relative peace in the city, after a bomb targeted an influential police chief visiting Kabul from Uruzgan province last week.
The capital and strategic provinces across the country are on high alert ahead of the expected start of the Taliban’s annual spring offensive.
The militant group ousted by the US-led invasion in 2001 is waging an insurgency against the Afghan government and its foreign backers.
Almost 3,700 civilians were killed and more than 6,800 were injured in the conflict last year as fighting intensified and foreign troops withdrew, formally ending their combat role in December last year.