“They shoot people from the ambulances,” said one terrified resident, Omar, by telephone as he recalled an episode during the protests on Friday when one protester was wounded. “We thought they’d take him to the hospital,” he said, but the militiamen “shot him dead and left with a squeal.”

A precise death toll might be impossible. Omar said that friends who were doctors at a hospital in Tripoli saw bodies being removed from the morgue to conceal the death toll. Local residents told him that the bodies were being taken to beaches and burned. Omar did not want his full named used for fear of his life.

“We have no freedom here,” he said. “We want our freedom, too.”