New Delhi, Nov. 3 -- An Indian seafarer was killed, and 13 others were rescued safely after an Indian-flagged vessel came under an aerial attack off Oman's coast, triggering strong condemnation from New Delhi, which warned that repeated strikes on commercial shipping threaten maritime security and called for an immediate de-escalation of tensions in the region.

The vessel, MSV Al Jusufi, was carrying 14 Indian nationals when it was hit on November 2. The Omani Coast Guard rescued 13 crew members, while one seafarer died of injuries sustained in the incident, the Ministry of External Affairs said.

Union Minister for Ports, Shipping and Waterways Sarbananda Sonowal identified the dead man as Gandhar Nahim Ajij, from the western state of Guj...