Three fishing trawls used by the intruders for fishing along the prohibited breeding zones of the endangered marine animals were seized by the patrolling unit engaged by forest department for conservation of olive ridley sea turtles near unmanned Ekakulanasi yesterday, they said.
They were later remanded to jail custody.
Sea patrolling has been stepped up in the Gahirmatha Marine Sanctuary water territory in view of the annual mass nesting season of endangered Olive Ridley sea turtles.