US Salvadoran embassy a target of guerillas

Leftist guerrillas fired submachine guns and a rocket-propelled grenade at the US Embassy, blowing a 20-foot hole in the mission, which has been attacked by terrorists four times in three weeks. No one inside the embassy was injured in Wednesday's attack, but witnesses said two men in a passing bus were wounded by embassy guards who fired at the fleeing guerrillas.

Guerrillas from the leftist Popular Liberation Forces claimed responsibility for the attack in telephone calls to news organizations. They said it was in retaliation for US military aid to the ruling military-Christian Democra t junta.