A suicide bomber on Friday struck a check post near a strategic air force complex in Pakistan's Punjab province, killing at least seven persons and injuring a dozen others in the latest in a series of deadly terror attacks targetting the security forces.

The bomber walked up to the first check post outside the Pakistan Aeronautical Complex within the cantonment in Kamra in Punjab and detonated his explosives when security guards stopped him, police officials were quoted as saying by TV news channels.