Dhaka - Bangladesh on Monday formed a committee to formulate a plan for the reconstitution of its border force following last month's mutiny at the Bangladesh Rifles (BDR) headquarters in which more than 70 army officers were killed, a senior official said.

"I will do it at the earliest in the interest of the country," Mainul Islam, the director general of the paramilitary force and committee head, told German Press Agency dpa after a three-hour meeting of the coordination body.

Islam said that he would seek the views of the various forces, including the army, the Rapid Action Battalion and police.

"It is difficult to carry out the responsibilities in the manner the force is being run now [after the mutiny]," he said, adding that a timeline could not be drawn as the process was the first of its kind in Bangladesh.

Prime Minister Sheikh Hasina Wazed had announced immediately after the 33-hour troop rebellion that was quelled on February 26 that the force would be reconstituted.

Commerce Minister Faruk Khan told a press briefing at the BDR headquarters after the meeting that the committee would comprise of seven to eight members.

It will submit a report after reviewing the structure of similar forces in other countries.

Bangladesh has detained as many as 590 soldiers suspected of involvement in the mutiny that saw the killing of commanders and their relatives inside the BDR headquarters.

The Home Ministry, the army and the police's Criminal Investigation Department (CID) are conducting three separate investigations into the carnage.

The CID is being assisted by the Scotland Yard of Britain and the Federal Bureau of Investigation (FBI) of the United States.

After providing initial support to authorities in Bangladesh, the FBI agents left Dhaka on Monday but the bureau was to remain on standby.

"While the initial phase of their collaboration is complete, FBI officials will return to Bangladesh at an appropriate time in the future to review the progress of the investigation and provide any additional suggestions that might be appropriate," US ambassador in Dhaka James F Moriarty said.

The investigation may take considerable time to complete, he said. (dpa)