Thursday officials announced that seven U.S. Marines were killed after a midair collision of two military helicopters along the California-Arizona border.
The incident occurred at Wednesday night around 10:30 p.m. ET and the helicopters were in the routine training operations.
To know details about the crash please visit the following links:
http://edition.cnn.com/2012/02/23/us/arizona-marines-killed/index.html