As the one year anniversary of the disappearance of Malaysia Airlines Flight MH370 fast approaches, officials are questioning whether to continue the search.

So far, no trace of the aircraft has been found. It has cost more than 40 million dollars and is considered the most expensive of its kind.

Australian Deputy Prime Minister and Transport Minister Warren Truss told Reuters the difficulties of the search are being weighed against the need for closure. 

"Clearly we can't search all the oceans of the globe and the area we are talking about is vast. It's up to six days sailing time from Perth, that's essentially the nearest port. So, it's a difficult area to be working in. We've had four cyclones through the area in the period since the search has been undertaken. So, it can't go on forever, but on the other hand we're conscious of our responsibility to the families and to try and find closure and to try and find the aircraft while there's hope that that might be able to be achieved," Mr Truss said

The flight vanished from radar screens on March 8, 2014 after taking off from Kuala Lumpur enroute to Beijing.

239 passengers and crew were on board.