Cambodian Khmer Rouge guerrillas attacked Vietnamese occupation...

Cambodian Khmer Rouge guerrillas attacked Vietnamese occupation troops and the two sides traded artillery and mortar fire for three hours, according to guerrilla reports. The reports, which could not be independently confirmed, said the fighting occurred 7 1/2 miles inside Cambodia near Aranyaprathet, a major Thai border town. No casualty figures were given. The Khmer Rouge is the largest of three guerrilla groups fighting to drive 160,000 Vietnamese troops out of Cambodia.