Lawrence police and firefighters Thursday morning began investigating a suspicious cooler found in Burcham Park to see if it contained any hazardous material, but officers discovered it only had rotten fish bait inside.

Sgt. Trent McKinley, a police spokesman, said a parks and recreation worker found the cooler along the west bank of the Kansas River after 8:30 a.m. in the 200 block of Indiana Street. The cooler was secured by duct tape shut, he said. Police and firefighters took precautions before opening the cooler.

A parks and recreation worker suffered exposure due to inhalation in July in east Lawrence after discovering a cooler full of remnants of a meth lab.

Also Thursday morning, in a separate incident officers were searching for a man near Eighth Street and Kasold Drive who had an outstanding municipal court warrant, McKinley said. The man had fled from municipal court earlier Thursday when an officer came to arrest the man, Roger Lamar Coleman, 32. The suspect eventually called dispatchers and came out of a residence about 9:20 a.m. near Ninth Street and Holiday Drive where he surrendered to officers, McKinley said. He was taken to the Douglas County Jail on a municipal court warrant and a new charge of interference with duties of an officer.