An Indian military plane with more than 20 people on board has gone missing over the Bay of Bengal, the Indian air force (IAF) has confirmed.
The Antonov-32 transporter aircraft took off from Chennai (Madras) at 08:30 local time (03:00 GMT), bound for Port Blair in the eastern archipelago of Andaman and Nicobar.
It was scheduled to land at 11:30.
Four aircraft, 12 ships and a submarine have been deployed to search for the plane, the ministry of defence said.
The IAF operates more than 100 Antonov-32 aircraft.