Malaysia's civil aviation department will release an interim report on the disappearance of Malaysia Airlines Flight 370 on March 7, a day before the flight's one-year anniversary.

Deputy Transport Minister Aziz Kaprawi says the report won't have any conclusion on what happened to the plane because the search is ongoing.

Aziz said Tuesday the report will focus on investigations into the search for the plane, which is believed to have crashed in the remote southern Indian Ocean. The plane disappeared while flying from Kuala Lumpur to Beijing with 239 people on board.

The Australian coordinators of the search have said the current phase could take another year and there is still no guarantee of success. No debris has ever been found.