MANILA, Philippines (AP) _ Armed men ambushed a car carrying a provincial governor, but security guards killed three of the attackers in a gun battle, the military said Sunday.

Zambales provincial Gov. Amor Delos and his party were driving to Delos' home Saturday when they were ambushed by five gunmen outside of Botolan town, 80 miles northwest of Manila, a military report from Zambales said.

The governor's bodyguards engaged the ambushers in a brief gunfight. Three attackers were killed, including a former policeman who had deserted his post in neighboring Pampanga province, the report said.

There were no casualties in the governor's party, it said. The report gave no motive for the attack.

Meanwhile, military officials said communist rebels on Saturday shot and killed two soldiers, a militiaman and their two civilian boatmen as the group was patrolling a river in the Pampanga town of Macabebe.

In Aurora province, about 60 New People's Army guerrillas commandeered a bus and two jeeps Saturday and used them to attack a Philippine Constabulary patrol base near the town of San Luis, 80 miles northeast of the capital.

Two soldiers were wounded in the fighting and the rebels fled on foot toward nearby mountains after burning the camp and taking an unspecified number of firearms, a military report said. It mentioned no casualties n the rebel side.

Communists rebels have been waging a 19-year-old insurgency.