Oorkaval Thurai Magistrate M Mahenthira Raja passed the order remanding them to judicial custody till October 14, U Arulanandam, president of Pamban Innocent Fishermen's Organisation told reporters here, quoting information he received from Sri Lanka.
The four were part of a group of about 2,000 fishermen who had put out to sea in 500 mechanised boats yesterday from this coastal town, he said.
The fishermen have been lodged in a prison in Jaffna.