The Criminal Investigation Department (CID) of Police has almost completed the collection of evidence and samples of the massacre at the Bangladesh Rifles headquarters in Pilkhana.

Investigation Officer Abdul Kahar Akhand told reporters today that the investigation report could be submitted soon, private television station ATN Bangla reports.

"We are almost done with the collection of evidence. We are quizzing people arrested at various places," Akhand said.

Three teams have been working on identifying the people who were involved in killing, committing arson and looting during the mutiny on February 25-26.

The CID team has been trying to detect the culprits through fingerprints on the arms, helmets, belts, nameplates and uniforms left by the BDR members.

Sources said DNA tests would be done to dried blood at various places in Pilkhana too.

Akhand said they were trying to find out if any other group in addition to the BDR members was tied to the incident.

He said it would take time to get more details about the incident.

Meanwhile, an army team was digging deep for the position of the BDR personnel as part of its investigation.