ERIE, Pa. (AP) -- Police say a 3-year-old boy they thought was burned by a space heater was instead injured when a one-pot methamphetamine lab exploded.

Erie police say 34-year-old Stephen Godfrey was cooking the drugs when they exploded, burning the boy just before 5 a.m. Feb. 4. The boy was taken to an Erie hospital then UPMC Mercy in Pittsburgh, where he's being treated for severe burns to his face, hands, legs and abdomen.

Fire inspectors initially thought the boy's blanket got too close to the wall-mounted heater, causing a small explosion and fire.

Online court records don't list an attorney for Godfrey, who faces a preliminary hearing Feb. 18 on charges of felony drug manufacturing, endangering the child and other crimes.

Police eventually learned that Godfrey removed the drug-making materials before firefighters arrived.