A trespasser was found with chemicals to make methamphetamine behind a St. Petersburg convenience store, police say.

According to St. Petersburg Police, officers were called to the WaWa at 2456 22nd Ave. at 10:30 p.m. to investigate reports of a trespasser in the back lot of the store.

Officers approached the trespasser, identified as Gregory Lawrence, 37, and discovered he had a bottle with chemicals to make methamphetamines, police say.

The area behind the WaWa was sealed off until the Vice and Narcotics Unit could remove the bottle. The store remained open through the incident.

Lawrence was arrested on charges including trespassing after warning and manufacturing methamphetamine.