[EDIT] Adding a couple of more recent tweets from Micah Grimes indicating this may be the end of the search for MH370:

> JUST IN: @WrightUps from above Indian Ocean says US P-8 crew "getting radar hits of significant size;" trying to get visuals on hits.

> Australian maritime authority official calls objects credible and of "reasonable" size; largest object about 24 meters.

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ABC journalist David Wright [[0] is currently on the P8 plane that is searching for the debris.

Here's a tweet [1] from ABC's social media editor who (apparently) must have spoken to him over voice comms:

>.@WrightUps from Navy P-8 search plane: "We are just descending through clouds right now ... about 1,300 miles southwest of Australia."

[0] https://twitter.com/WrightUps

[1] https://twitter.com/MicahGrimes/status/446501269155618816