Sixty hours into the missing of flight MH370 and authorities are still unable to locate any signs of the plane which dropped off the radar at 2.40am on Saturday.

A number of sightings such as floating objects and oil slicks were reported, however none has been confirmed to belong to MH370.

"We have not found anything that appears to be objects from the aircraft, let alone the aircraft. We will be intensifying efforts to locate it, " said Department of Civil Aviation (DCA) Director-General, Datuk Azharuddin Abdul Rahman at a press conference held at 12pm on Monday.

"For us to determine what really happened, we need hard evidence and we need parts of the aircraft for us to analyze," he added.

Vietnam media had on Sunday reported sightings of a piece that resembled the inner part of the door of an aircraft. However, he said that the ‘report was not verified officially by Vietnamese authorities’.

Azharuddin added that aircrafts participating in the search and rescue also spotted objects which resembled the tail of the plane but turned out to be ‘logs tied together’ resembling a pontoon.

"For the aircraft to just go missing from the radar blip, many theories have been said in the media. Many experts around the world contributed to what could have happen. We are equally puzzled as well," he said adding that more international agencies have offered help to assist in the investigations.

"The Federal Aviation Administration (FFA) and National Transportation Safety Board (NTSB) from the United States are already here and we will meet as soon as possible to see how they can offer their assistance. We also received offer from AAIB and the Australians. We have not received anything from the French yet."

Eight countries have joined Malaysia in the search and rescue operations including Vietnam, China, Singapore, Indonesia, Thailand, the Philippines, the United States and Australia.

The operations has been widened to a radius of 50 from 20 nautical miles, covering the South China Sea and the Straits of Malacca.

34 aircrafts and 40 ships have been deployed to intensify the search.