High-flying drone video (no audio) captures four Vietnamese fishing vessels burning off the Pacific island nation of Palau on June 12, 2015. The crews of the boats had been caught engaged in illegal fishing in recent weeks, and the Palau government purposely set fire to the boats as a message to poachers, as seen in this aerial footage created with a GoPro camera.
For more on the Palau illegal-fishing boat burning, see story and pictures from The Pew Charitable Trusts: http://www.pewtrusts.org/en/research-and-analysis/analysis/2015/06/15/palau-illegal-fishing