New Delhi, Nov 07 (ANI): Indian Navy Spokesperson Captain DK Sharma on Friday said that the navy is on a full scale search operation after the Indian Navy's torpedo recovery vessel (TRV) sank off the coast of Visakhapatnam at around 8:00 pm last night. He said that one sailor lost his life and four others went missing in the incident. The vessel was on a routine mission to recover practice torpedoes fired by fleet ships when she experienced flooding in one of her compartments. He claimed that at the time of the accident, there were 28 personnel on board. Sharma said that the prima facie reason as of now is the flooding of the engine room.