GHAZNI (AFP) - A suicide bomber on a motorcycle killed a deputy Afghan governor and up to five other people in a direct attack on his vehicle on Tuesday, officials said. Mohammad Kazim Allahyar, deputy governor for the troubled southern province of Ghazni, was on his way to his office when the bomber struck. The deputy governor has been martyred. His son and his nephew have also been martyred. In total, six people have been martyred, provincial police chief Delawar Zahid told AFP, describing the bombing as a suicide attack. Eight other people, including passers-by, were injured in the blast from the three-wheeled motorbike on a dirt road outside the provincial capital Ghazni, the police chief said. The bomber targeted Allahyars vehicle, he added. The interior ministry confirmed the incident but said a total of five people had died - the deputy governor, his son, two of his nephews and a guard.