Five people were killed and three others were wounded when a suicide bomber on foot detonated his explosives in the middle of a busy street near many Afghan ministry buildings, an Afghan Interior Ministry official said on Wednesday. It is not clear what the target was, Najib Danish, a spokesman for the ministry told dpa. Nearby are the Afghan Defence Ministry, the Finance Ministry, the Ministry for Mines and Petroleum as well as the presidential palace. Danish had earlier said that 10 others were wounded in the bombing.