A suicide bomber walked into the offices of Kabul’s police chief on Sunday and detonated his explosives, killing a senior aide.

A suicide bomber walked into the offices of Kabul's police chief on Sunday and detonated his explosives, killing a senior aide.

City police chief Zahir Zahir, who was at work when the blast erupted, said the attacker had evaded several checkpoints at the force's heavily-guarded headquarters.

"I'm fine, but one of my best officers, my chief of staff Yassin Khan, was killed and six were wounded," Zahir told AFP, speaking just an hour after surviving the apparent assassination attempt.

Zahir said closed-circuit cameras showed that the attacker, who was dressed as a civilian, carried papers under his arm and did not use the building's main gate.

He was only stopped when he tried to enter the police chief's room.

The Taliban claimed responsibility for the attack.