GHAZNI, Afghanistan, June 12 (Xinhua) -- At least five police were killed and 26 injured after Taliban militants attacked a district office with an explosive-laden hijacked military vehicle in Afghanistan's eastern province of Ghazni on Tuesday, a provincial government spokesman said.

The explosion occurred roughly at 2:00 a.m. local time Tuesday when a man rammed the vehicle to the front gate of Muqur district office building, killing five policemen guarding the gate and a watchtower, spokesman Harif Noori told Xinhua.

Most of the wounded sustained injuries by shrapnel and flying glasses and three injured policemen remained in critical condition, he said.

The blast also severely damaged the building.