A huge car bomb blast killed at least 27 people and injured dozens more in Afghanistan's eastern Logar province on Friday evening, with high school students among the casualties.

Axar.az reports citing foreign media that local officials stated this.

The car packed with explosives detonated in Logar's capital of Pul-e Alam near the house of the former head of the provincial council, Didar Lawang, the spokesman for Logar's governor, said.

The house also operated as a guesthouse and the blast had struck just as guests were breaking their fast during the Islamic holy month of Ramadan, according to the head of Logar's provincial council, Hasibullah Stanekzai, who told Reuters 27 people had been killed and dozens more wounded.

He said among the casualties were high school students who had been staying at the house, having travelled to the capital to sit their university entrance exam, as well as pro-government militia members who were staying there while waiting for air transport to another distinct.

It was not immediately clear who was behind the blast. A spokesman for the insurgent Taliban said in response to Reuters' questions that they were looking into the matter.