KUALA LUMPUR - Malaysian Prime Minister Najib Razak will be holding a news briefing at 10pm local time on developments related to the missing Malaysia Airlines flight MH370.

"I will be making a statement on #MH370 at 10pm Malaysian time tonight at PWTC,'' Mr Najib tweeted just a while ago.

Australian television also reported that in Beijing, families of MH370 passengers had been asked to attend a briefing at 10pm.

News of Mr Najib's news briefing came just hours after Australia said the crew of P-3 Orion had spotted two objects in the area.

"The crew on board the (P-3) Orion reported seeing two objects, the first a grey or green circular object and the second an orange rectangular object," Prime Minister Tony Abbott told parliament.

An Australian navy vessel - the HMAS Success - should reach the two objects by Tuesday morning at the latest, Malaysia's government said earlier on Monday, offering the first chance of picking up suspected debris from the plane.

Mr Abbott added that Australia did not know whether any of these objects were from the missing Malaysia Airlines flight MH370.

"They could be flotsam," he said.

"Nevertheless, we are hopeful that we can recover these objects soon and they will take us a step closer to resolving this tragic mystery."

The Star online reported that Malaysia's Acting Transport Minister Hishammuddin Hussein informed lawmakers in Parliament that Mr Najib was scheduled to deliver a press statement on Monday night.

Mr Hishammudin, who appeared before lawmakers in the Dewan for the first time since the plane went missing on March 8, did not reveal details of the scheduled press conference.

"There is some development. Whatever it is, the focus is to reduce the search area, so anything that PM announces is in relation to the reduction," he said.