He says people with information about the chairman’s location will be rewarded
The Ministry of Shipping in a media statement on Wednesday night also said the ship which rammed the victim vessel was detained from Bhola earlier in the day.
It said MV Total's survey certificate and registration were also cancelled.
The statement said an urgent inter-ministerial meeting presided over by Shipping Minister Shajahan Khan decided to shut the route until further notice.
Tanker 'OT Southern Star 7' was carrying 357,664 litres of furnace oil when it went down after being hit by MV Total on the Shela at Mrigmari in the forest's Chandpai range early on Tuesday.