Communist-led insurgent forces have been shelling the Khmer capital of Phnom Penh for the past three weeks, bringing to 146 the number of people killed or wounded in the rocket attacks since June 1.

In one of the latest attacks, the insurgents fired four Chinese-made rockets near the United States Embassy, killing three people and wounding six. The 107 mm shells landed in a crowded residential area late in the evening.

As the war intensifies around the Khmer capital, a corps of infantry officers graduated from the U.S. - run Infantry School in Phnom Penh over the weekend.

165 Khmer officers received their commissions from the Khmer Chief of Staff, General Sosten Fornandez, at a passing-out ceremony. The officers, including 92 company commanders and 73 senior officers, were the first graduating class of the Infantry School.