President Jose Napoleon Duarte urged the Roman Catholic Church to produce evidence that reportedly indicates army complicity in the premeditated slaying last week of 10 peasants.

"There has to be proof to judge these matters," Duarte said Tuesday. "I am conscientious and have faith that I will continue defending human rights, and this implies, in addition, that if someone falters, society should punish it."But accusations should not be made without proof," he said.

The Roman Catholic Church said Monday it had "proof" that soldiers were directly involved in the killing of 10 peasants last Wednesday in La Cebadilla, a hamlet in San Vicente province about 25 miles east of San Salvador. Residents of La Cebadilla said the peasants were brutally slain after being detained and interrogated by soldiers. The army initially blamed the deaths on a rebel ambush.