FOUR OAKS, N.C. (AP) — Authorities say they found a body behind a Johnson County barn after an explosion.

Investigators said the blast was reported near Four Oaks around 9 a.m. Saturday.

Authorities say the cause of the explosion isn't known, but items needed to make methamphetamine were found in the barn.

An autopsy has been ordered to identify the victim and determine how the person died.

Residents of a nearby mobile home park were evacuated while firefighters put out a blaze sparked by the explosion.