A suicide bomber killed dozens of cadets at a Kabul police academy on Friday and blasts hit an area near the airport in a wave of attacks that began with a huge early morning truck bomb explosion in the Afghan capital. The bombings were the first in Kabul since Mullah Akhtar Mansour took charge of the Taliban last week in a ceremony challenged by other leaders. A Taliban spokesman claimed responsibility for the attack on the police academy by a bomber wearing a police uniform who detonated his explosives among students. Shortly afterwards, two explosions hit an area north of Kabul airport. A fourth explosion took place at a counter narcotics police camp near a US special forces base. The numbers of dead and wounded keep on rising as details emerge of the outbreak.