A suicide bomber on a motorcycle killed on Tuesday the deputy governor of Afghanistan's Ghazni province, Mohammad Kazim Allahyar, and five other people, a top police official said. Allahyar, his son and two bodyguards were killed instantly when the attacker detonated his explosives at the back of their car near the airport in Ghazni city, provincial police chief Delawar Zahid told Reuters. "Allahyar was on his way to work when a suicide bomber on a motorbike targeted his car ... (they) were martyred," Zahid said. His nephew and a third bodyguard were wounded and died in hospital, Zahid said.