Port Blair, March 19 (ANI): Indian authorities have instructed local sailors and fishermen in the Andaman and Nicobar islands to keep a sharp eye out and sound alarm if they see anything unusual in wake of the missing Malaysian Airlines aircraft, sailors said. Whilst India has put on hold its search for the missing aircraft at the request of the government in Kuala Lumpur, which wants to reassess the hunt for the vanished plane, fishermen and local boatmen said they had been instructed to exercise extra vigilance while out at sea. Balayogi, a senior sailor on one of the civilian boats in Port Blair, said they were instructed to offer all possible help if they spotted anyone in trouble. P Madhivanan, captain and master of the boat "Lawrence", said they had been asked to immediately alert the communication centre if they found anything unusual in the sea.