Fish worth around Tk 5 lakh were poisoned to death in three ponds at Udoypur village in Jhenidah sadar upazila yesterday.

The owner of the ponds Razzak Hossain, president of Jubo Dal's municipality unit, was arrested by Sadar police on Tuesday in connection with the recent petrol bomb blast in the town’s Pabahati.

Razzak's wife Bithi Khatun claimed that local Awami League activists deliberately got him arrested and later poisoned the fish.

Police said Razzak is one of the four accused in the case and they will take actions about the fish poisoning if anyone lodged a complaint.