A flight to Venezuela has been forced to return to Miami International Airport because after passengers smelled fumes in the cockpit.

American Airlines flight 2107 left with 186 passengers at 8:32 a.m. Thursday. Officials say the plane turned around when passengers and crew smelled an odor inside. It's not clear what caused the smell.

The plane was headed to Caracas. An airline spokeswoman says it turned around and landed safely at 9:03 a.m.

The Federal Aviation Administration and American say no one was injured. Passengers are being transferred to another plane.