ROBERT, La.  - A board investigating a deadly oil rig explosion that caused a massive oil spill in the Gulf of Mexico will begin its work next week.

The six-member panel is split between representatives of the U.S. Coast Guard and the Minerals Management Service.

MMS spokesman John Callahan said a more detailed schedule will be released Friday. The board is tasked with investigating the cause of an April 20 explosion that killed 11 workers at an oil rig operated by BP PLC.

BP is still trying to stop the leak spewing more than 200,000 gallons of oil a day. Authorities earlier said the investigative board will hear testimony from survivors of the explosion and technical experts.

UPDATE: Boat with containment box arrives at oil spill site