Cagayan. Communist fighters have set off a roadside bomb and opened fire on a lorry carrying police in the northern Philippine province of Cagayan, killing seven police commandos and wounding eight more.The members of the elite police Special Action Force were travelling to a hospital on Monday for a regular medical test when the rebels, hiding in the bush along a road in Cataratan, detonated the explosive device and sprayed the vehicle with gunfire, according to a police spokesman.Al Jazeera’s Jamela Alindogan, reporting from Manila, quoted government officials as saying that a group of 30 armed rebels launched the attack."The Philippine spokesperson we spoke to earlier said that it was a premeditated and coordinated attack by the New People’s Army,” she said.She said the attacks were a common tactic by the Communist group to seize weapons.  The rebels have been waging a 44-year rural-based Marxist rebellion, which has claimed an estimated 120,000 lives.The government recently suspended peace talks brokered by Norway after the rebels rejected an immediate ceasefire.