"The Mumbai main police control room received a distress call last night that tugboat Sonika, with four men on board, had run aground on rocks in the waters off Raj Bhavan during low tide and had begun to flood," a Defence spokesperson said here.
"The site is in the vicinity of the general area where the Shivaji statue is planned to be built," he said.
"A police launch from Mahim reached the site by 2115 hours but could not approach the tugboat due to rocks and shallow waters," he said.
"At about 2320 hrs, a naval Seaking C helicopter, with divers onboard, was launched from naval air station INS Shikra. The helicopter was able to extract all the four stranded men and returned to the base by 2345 hrs," he said.
A medical check up of the rescued men was conducted at the INS Shikra.
"The crew is safe and no injury was reported," he added.