Alaska wildlife officials have closed two lakes to fishing near North Pole after water testing found contamination.

The Fairbanks Daily News-Miner reports the state Department of Fish and Game announced last week the closures of Kimberly Lake northwest of North Pole High School and Polaris Lake on Eielson Air Force Base.

Officials say the department also has suspended stocking of hatchery fish in all lakes on the base.

Officials say the chemical compound known as PFAS was found in concentrations above the Environmental Protection Agency's advisory levels. The substance is found in foam used to suppress oil fires.

State Department of Environmental Conservation spokeswoman Laura Achee says no other fish-bearing bodies of water have been found to have high levels of the chemical.