Indian fishermen from Rameshwaram in Tamil Nadu were arrested by the Sri Lankan Navy on Sunday.
According to reports, 54 fishermen from 10 boats were arrested while fishing near the Katchatheevu and Neduntheevu islands, which are administered by Sri Lanka.
Further details are awaited.
The arrests have taken place ahead of talks between Indian and Sri Lankan fishermen, scheduled to be held in Chennai on March 24-25.