Reported mid-air collision - two U.S. Marines CH-53 helicopters off coast of Oahu
 

CNN has reported that 12 US Marines are missing after an apparent mid-air collision between two CH-53 helicopters off the coast of the Hawaiian island of Oahu. No survivors and only deployed empty life-rafts have been found thus-far.

CNN.com Story Here

Already discussed in Military Aviation and in Rotorheads forums.