A plane with passengers on board 'skidded' off the runway and into a river in Florida on Friday night.
Mayor of Jacksonville Lenny Curry confirmed a "commercial" plane was "down on the river" at 10:30pm (03:30am Saturday GMT).
He said the incident was a "developing situation" and urged his followers to "pray while they [the Fire and Rescue team] work".
Posting on Twitter, he said: "Teams are working to control jet fuel in the water."
Passengers could be seen standing on the wing of the plane and getting into a yellow float.
The Jacksonville Sheriff's Office confirmed the incident and a marine unit was called to the scene to assist.
The Sheriff said the plane landed in shallow water "was not submerged".
There were 136 passengers on board along with seven crew members.
According to a spokesperson for Naval Air Station Jacksonville, the Boeing 737 aircraft slipped off the runway while trying to land and ended up in the St John's River.
The airport spokesperson said: "At approximately 9:40pm today, a Boeing 737 arriving from Naval Station Guantanamo Bay, Cuba into Naval Air Station Jacksonville crashed into the St. Johns River at the end of the runway.
"Navy security and emergency response personnel are on the scene and monitoring the situation."
Mayor Curry said President Donald Trump's White House staff had called to offer help as the situation was developing.
He added: "We are all one family. One people. One city.
"All alive and accounted for. Our Fire and Rescue teams are family to all."
Every passenger was accounted for and only minor injuries were reported.
The National Transportation Safety Board has launched an investigation.
