By ABC NEWS
A flight crew scouring the southern Indian Ocean for a missing Malaysia Airlines plane tells ABC News that they're getting radar hits of "significant size," indicating something lurking below the water's surface.
ABC News' David Wright, the only TV reporter on board the US Navy P-8 Poseidon, said the crew tells him the radar indicates "there is something down there."
It is still too early to tell if the radar hits are related to the missing plane, which was carrying 239 people when it disappeared on March 8.
The P-8 is among four aircraft and one merchant ship heading to a region off the coast of Australia after two objects that may be related to the plane were spotted by satellite, officials said Thursday.
Officials described the sighting as the best lead at this stage in the investigation. The updates have been deemed "credible enough to divert resources to this area," said John Young with the Australian Maritime Safety Authority’s Emergency Response Division. The largest of the objects spotted on satellite is about 78 feet long, he said.
"This is a lead, it is probably the best lead we have right now," Young said.
Despite the development, officials are stressing caution, saying the objects might not be related to Flight 370.
Earlier, American and British aviation officials refined satellite signals from the missing plane, creating two possible flight paths that dramatically narrowed the scope of the search.