At least 17 civilians including five children were killed in a suicide attempt on the security forces at the Headquarters of North Waziristan here. Sources said that Pakistan army convoy was on way from Bannu to Miranshah, when a suicide bomber attempted to ram his explosive-laden vehicle with the convoy, but the FC alert gunmen preventing the attack on convoy blew it up by firing, which unfortunately resulted in the death of 17 civilians including five children, while several were injured, as the spot of incident was crowded with people at that time besides the children were returning from the schools.