A mechanised boat fisherman went missing from the vessel even as it was venturing for deep-sea fishing on Monday night. Police said 10 fishermen were going from Tharuvaikulam for deep-sea stay fishing in the mechanised boat of A. Anthoniyar Pitchai of Tharuvaikulam on Monday night. When they were crossing new harbour around 11.30 p.m. crew E. Panimayaraj, 24, of Mela Alangaarathittu on Thoothukudi outskirts went missing from the boat. After alerting the Tharuvaikulam marine police, the boat owner and other boats in the vicinity, the fishermen started searching for him in the unusually rough sea, but in vain. The search is still on to locate the missing fisherman, said the mechanised boat owners of Tharuvaikulam.