An Indian Air Force AN-32 aircraft with 29 people on board went missing while flying from Chennai to Port Blair on Friday, Defence Ministry officials said.
The jet took off from Tambaram in Chennai and lost radar contact at 8:45 am.
The aircraft has an emergency beacon locator, which usually gets activated if there is a crash.
The estimated time of arrival in Port Blair was 11.30 am.
A massive search operation has been started by the Air Force, Navy and Coast Guard in the Bay of Bengal.
Officials said it was “courier flight” with service personnel on board.
Navy officials said that one P-8I surveillance aircraft, one Dornier and four ships have been deployed in the search and rescue operation and more assets are being dispatched.
(With IANS inputs)