At least one person was killed and others injured in an explosion that struck a bus on a busy road in Kabul, capital of Afghanistan, on Saturday.

The blast took place in the Dasht-e-Barchi  area of western Kabul.

"We heard a huge blast in a minibus carrying commuters in Mahtab Qala locality. The whole place has now been sealed off by the Taliban's security forces," an eyewitness told Xinhua News Agency.

Taliban Spokesperson Zabihullah Mujahid tweeted that a fire had broken out in the suburb, killing at least one civilian and injuring two others, according to a Reuters translation. He said that an investigation had been launched and details will be shared with the media at an early time, Xinhua added.

A source from Hakim Nasir Khesrow Balkhi Hospital placed the number of injured at four, including a woman, Xinhua reported.

No group has claimed responsibility for the attack yet.

(Cover: File photo of Afghan security forces patrolling a street near the site of a tractor bomb attack in Kabul, capital of Afghanistan, September 3, 2019. /Xinhua)

(With input from agencies)