Taliban security forces have cordoned off the area for precautionary measures. The blast sent a column of thick smoke into the sky and damaged several vehicles.
Earlier on Thursday, four children were killed and one child was wounded after some explosive remnants exploded by accident on the outskirts of Taluqan, capital of northern Takhar province, Afghanistan.
The obvious target of the blast remained unknown and no group has claimed responsibility for the attack so far. Islamic State (IS)-affiliated terrorists have staged several bomb explosions in Kabul and other places since the Taliban's takeover in mid-August.