3 U.S. Senators involved in helicopter incident in Afghanistan: UPDATE: Hagel's office tells Fox News all 3 are okay

Fox News is reporting that a helicopter carrying U.S. Senators John Kerry, Joe Biden and Chuck Hagel has made an emergency landing in Afghanistan.

No other details.

DEVELOPING

UPDATE

CNN.com now has the news up on its banner.

UPDATE 2:

MSNBC.com now has it in its banner.

UPDATE 3:

A Fox news producer spoke with Hagel's office and says all 3 were okay and are continuing with their trip.