The navy immediately deployed three warships, KRI Diponegoro, KRI Raden Eddy Martadinata, and KRI I Gusti Ngurah Rai, to search for Nanggala.[39] Widjojono stated that a team of divers was searching for the boat.[27] Janes Defence News also reported that the navy had sent a number of other warships to the area.[34] The defense ministry stated that the governments of Australia, Singapore, and India had responded to their requests for assistance.[40] The Republic of Singapore Navy and Royal Malaysian Navy have deployed their submarine rescue vessels, MV Swift Rescue and MV Mega Bakti respectively, to the scene.[41] By Thursday, 22 April, the navy had deployed six additional ships to the area: KRI Dr. Soeharso, KRI Hasan Basri [id], KRI Karel Satsuit Tubun, KRI Singa, KRI Hiu and KRI Layang.[42] Yudo Margono also noted on Thursday that three submarines, five airplanes, and 21 warships had been deployed in the search effort.[30]