Search planes leave base near Perth on Sunday to resume their hunt for missing Flight MH370 in the southern Indian Ocean.<br /> <br />But Australia's prime minister tony Abbott says they now have another possible lead to go on.<br /> <br />(SOUNDBITE)(English) AUSTRALIAN PRIME MINISTER TONY ABBOTT SAYING:<br /> <br />"Yesterday one of our search, civilian, aircraft got visuals of a number of objets in a fairly small area in the overall Australian search zone. Finally the search is being joined today by four additional aircraft - two Chinese aircraft and two Japanese Orions."<br /> <br />As with previous sightings of floating objects there's nothing yet to connect them to the missing Malaysia Airlines jet and its 239 passengers and crew.<br /> <br />But Abbott says the development is a cause for hope at least.<br /> <br />(SOUNDBITE)(English) AUSTRALIAN PRIME MINISTER TONY ABBOTT SAYING:<br /> <br />"It's still too early to be definitive but obviously we have now had a number of very credible leads. There is increasing hope
