Rescuers look for 12 aboard Marine helicopters that collided off Hawaii
U.S. Marines jump from a CH-53D Sea Stallion helicopter in 2013. The U.S. Coast Guard says two of these helicopters have collided off the Hawaiian island of Oahu.
Two Marine helicopters collided off the Hawaiian island of Oahu with a total of 12 people on board and a search was underway, military officials said.
