An "electronic ping" was picked up from the Malaysia Airlines flight by satellites after the plane lost contact with ground control, Reuters reports. Meanwhile, US officials have been given an "indication" the plane crashed into the Indian Ocean.
The frustrations of the families of the passengers on board the missing Flight MH370 boiled over as angry relatives threw bottles at Malaysia Airline officials.
The video, taken in a Beijjing hotel room and posted to a Chinese social media site, appeared to show several water bottles being thrown at representatives as they delivered no new information on the fate of the 239 passengers.
The search for the plane, which disappeared off the radar at 1.30am on Saturday, has so far proved fruitless with aviation experts calling it one of the most baffling mysteries in recent history.
Operations to find the aircraft are now covering 27,000 nautical miles with some 42 ships and 39 aircraft from several countries now involved in the search.
A mother has described her frustration as she waits for answers on the fate of her missing son who is on board the missing Malaysia plane.
Malaysia's military believes a jetliner missing for almost four days turned and flew hundreds of kilometres to the west.
The wife of a passenger travelling on the missing Malaysia Airlines flight has spoken of her struggle to cope as she waits for news.