India, Jan. 30 -- At least 18 bodies were pulled from the Potomac River after an American Airlines regional jet reportedly collided midair with a military helicopter near Ronald Reagan Washington National Airport, a police official has said, according to CBS News. No survivors have been found yet.

The FBI is now aiding response to the crash by assisting local agencies. "The FBI Washington Field Office's National Capital Response Squad is responding to an aviation incident at Ronald Reagan Washington National Airport in support of our law enforcement and public safety partners," the Washington field office said in a statement.

A military official told NBC News that the helicopter involved in the terrifying crash was participating in a tr...