Vasan's remarks assumed significance in the backdrop of BJP voicing concern over what it called the Centre's "silence" over the detaining of MV Seaman Guard Ohio and its demand that the government come clean on the issue.
Meanwhile, in Tuticorin, a Q Branch team, led by Superintendent of Police K Bhavaneeswari, questioned some crew members and obtained details on various issues, including the arms and ammunition stored onboard the vessel.
The state government had on Tuesday transferred the probe into the ship case to the Q Branch.
Sources said the the Q Branch team perused records available on board the ship and they were being scrutinised.
The ship flying the Sierra Leone flag was intercepted by the Coast Guard in Indian waters some 15 nautical miles off Tuticorin coast on October 12 and an FIR registered against 35 persons onboard under the Arms Act for carrying arms without authorisation and Essential Commodities Act for buying 1,500 litres of diesel illegally with the help of a local shipping agent.