Jakarta – As many as 20 military officers went on trial Wednesday for allegedly involvement in the deadly attack at the Langkat police station and the Binjai Mobile Brigade headquarters in September.

The attacks, reportedly sparked by the police seizure of 1.5 tons of marijuana, claimed six lives and injured dozens of others. The officers of the Army 100 Prajurit Setia Airborne unit appeared in the Binjai military court, which was guarded tightly by the military police, El Shinta radio station reported.

According to military attorney Maj. Heru, the case started when two of the defendants slashed Adj. Comr. Toguh Simanjuntak, the Langkat Police detective chief, with a knife after he refused to release their friends who were arrested for drugs.

They were later shot by Toguh's subordinates, but later, the military officers took a revenge in a grenade attack on the station, which was then burned down.

They also attacked the police's Mobile Brigade station. Binjai, a town in West Sumatra, was deserted during the incident on September 28 and 29.

Indonesia Military Chief Gen.Endriartono Sutarto has ordered the dismissal of the military officers involved the case.