"The force of the water is really the only thing that could make that jagged edge that we see (on the flaperon). It wasn't broken off. If it was broken off, it would be a clean break."

Meanwhile, Australian Transport Safety Bureau (ATSB) crash investigator Peter Foley said there was a possibility that someone was in control of the plane as it went down.

"There is a possibility there was someone in control at the end and we're actively looking for evidence to support that," he said on Sunday night.

He admitted that if it was brought down by a "rogue" pilot, the wreckage could be outside the parameters of the Australian-led 120,000 square kilometer search zone. The search for the Boeing 777 is scheduled to end in coming weeks, considering less than 10,000 square kilometers is yet to be searched.

"If you guided the plane or indeed control-ditched the plane, it has an extended range, potentially," Foley said.

MH370 was a scheduled passenger flight bound for Beijing from Kuala Lumpur. There were 239 passengers and crew on board.