The Agriculture Ministry ordered an enforcement push after more than 100 black chin tilapia were found at Lam Pao reservoir in Kalasin. Keeping, breeding, transporting or possessing the fish is prohibited and enforced under the Fisheries Act. Public can report sightings via QR code to a rapid response unit. Allowed removal tools include rod, net, trap and lobster pot; electricity, chemicals and fish poison are banned. Farmers and fishers in the area should check their stock and avoid moving any fry or water-source fish from affected zones. Sites under surveillance are in Kalasin and Udon Thani (Wang Sam Mo district).