Navi Mumbai Police Commissioner Bipin Kumar Singh has asked officials to keep a watch on closed factories in the town to check narcotics are not manufactured there, in the wake of a number of cases of drugs seizure in neighbouring Mumbai in the recent past.

During a meeting of the district-level narcotics committee on Wednesday, Singh said several containers arrive at Uran and the Jawaharlal Nehru Port Trust in Navi Mumbai, and asked the Coast Guard to keep an eye on them to prevent any movement of narcotics.