Ross D. Franklin/AP Photo
National Transportation Safety Board and Federal Aviation Administration workers survey the damage left by the crash of two medical helicopters Monday in Flagstaff, Ariz. A total of six persons died and one victim is still critical from the mid-air collision on Sunday as one helicopter ferrying a patient with a medical emergency from the Grand Canyon collided into another chopper carrying a patient, Sunday east of Flagstaff Medical Center, but officials said they were unable to provide an account of what preceded the crash. For Andrew Zahler's SR Today In Pictures, click here.

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