ANGELES, Philippines (AP) _ A Philippine Air Force jet fighter crashed and exploded outside the U.S. Clark Air Base today, killing the pilot and two other people and igniting a fire that engulfed three homes, officials said.

At least four people were rushed to a hospital at Clark for treatment of burns from the blaze, said Rizal Policarpio, spokesman for Angeles Mayor Franciso Nepomuceno. He said at least five people had been injured.

The Philippine Air Force press office in Manila identified the pilot of the F-5 as Lt. Noe Linsangan, and said only that the plane was on a training flight from a Philippine base in Floridablanca south of Angeles.

Policarpiosaid witnesses told investigators they saw the plane flying very low and already in flames before it slammed into the two-story house of Felix Timbol in the city' Lourdes district, two miles from the U.S. air base and 50 miles north of Manila.

The charred bodies of Timbol, 63, and his 15-year-old son were recovered after firemen put out the fire, Policarpio said, adding that workers were searching through the debris for the Timbols' maid, who was missing.

A fish vendor in the vicinity said earlier that she saw several people crarrying bloodied children away from the scene, but Policarpio said he was not aware that children were among the people confirmed by his office as having been injured.