ISF gendarmes. The backup team was joined by the raiding parties in the engagement. The Israeli commandos held off the Lebanese security forces with automatic fire and Betser tossed a grenade at a jeep carrying Lebanese reinforcements, killing three of its four occupants. The Mossad agents arrived with the rented cars, and the commandos piled in and made their getaway, leaving behind spikes in the road to puncture the tires of pursuing police cars. While driving to the beach, they encountered a Lebanese Army armoured personnel carrier (APC) as it scanned the shore. They were not confronted and continued on to the beach, where the commandos and drivers abandoned the cars and returned to the missile boats in Zodiacs. At the same time, a force consisting mainly of Sayeret Tzanhanim paratroopers raided a multi-story building that housed militants of the Popular Front for the Liberation of Palestine (PFLP). The team was disguised as civilians and led by Amnon Lipkin-Shahak. They killed the guards at the entrance but took fire from a guard post they had not spotted and a firefight erupted. Three of the soldiers were severely wounded. Two of them were evacuated to one of the waiting cars. The third was being carried to the cars by a Shayetet 13 commando when a PFLP fighter, apparently believing that the wounded man was a Palestinian, tried to rescue him and grappled with the naval commando before fleeing. He was then put in another car. Although the force had a doctor on hand, the Mossad agent at the wheel of the car carrying two of the wounded panicked due to the gunfire and drove to the beach. Despite the fact that they had been discovered and were engaged in a firefight, Shahak ordered that the mission proceed. The soldiers successfully attached explosives to the building and withdrew. Upon arriving at the cars, they found only two of them, with the one carrying two of the wounded having vanished. After searches failed to locate the vehicle, Shahak, despite not wanting to withdraw without accounting for the two wounded men, ordered the men to evacuate in the two remaining cars. As they withdrew, the explosive charges detonated and the building collapsed. At the beach, they found the missing car, with one of the wounded men dead from blood loss. They returned to the missile boats, where another of the wounded died during surgery.