NEW DELHI, India (CNN) -- A Boeing 737 hijacked en route from Mumbai to New Delhi landed here Wednesday, sources with Indian Airlines told CNN.
All 54 passengers were reported safe.
The plane belonging to Alliance Air, a division of Indian Airlines, landed safely and was taken to a separate enclosure at the airport.
The pilot of the plane asked for two engineers to come on board, but it was not clear why.
There was no word on who was responsible for the hijacking.
All airports across India have been on alert for the past three or four days because a militant group fighting for independence on the Indian side of Kashmir reportedly issued warnings it would strike at airports.