A Philippine police chief, holding back tears, says autopsy reports showed some of his anti-terror commandos were wounded but still alive when they were shot to death at close range by Muslim insurgents in a recent clash.

Deputy Director General Leonardo Espina told a congressional hearing Wednesday that the Muslim rebel group, which signed a peace deal with the government last year, should explain why its insurgents committed an "overkill" that left 44 of his men dead in the Jan. 25 gunbattle.

Espina struggled not to cry as he spoke during the nationally televised House of Representatives inquiry into the deaths of the elite policemen. The commander of the slain policemen stood up and openly wept over the killings in the clash that cost him his job.