Police have recovered narcotic drug, opium worth Rs 3 crore at an international market and arrested four persons in Yamkanmardi police limits, near Belgaum on Monday.

The accused were transporting the drug from Goa to Hubli. During interrogation, they said, the drug was to be exported to some foreign countries from Maharashtra.

The arrested have been identified as Stanley Hirekerur (37) and Raghavendra Dodmani from Hubli, Rajkumarja Shankarja and Jaisaram Kumawat (23) from Goa.