Medan – Indonesian prosecutors on Wednesday demanded prison terms ranging from four months to 30 months for 18 police officers allegedly involved in the killing of two students in 2000, officials said.

Chief prosecutor Lt. Col. Purnomo said he sought a 30-month sentence for one non-commissioned officer who allegedly shot a student during an attack at Medan's Nomensen University.

Purnomo demanded prison terms of four to six months for the 17 others for their roles in the attack. He said it was not possible to determine who killed the second victim.

"The defendants are guilty of using violence against the students," he said at a military tribunal in the provincial capital Medan, about 1,400 kilometers northwest of the capital, Jakarta. Judges said the trial would resume on Tuesday.

On May 1, 2000, students rallied at the North Sumatra police headquarters demanding the release of a student who was arrested for gambling. The protest turned violent and several students were arrested. Their colleagues then took two officers hostage, and dozens of policemen attacked the university, killing the two students.