Officials in the Oklahoma town of Colcord said they found red worms in the water supply, and as a precaution, they shut down the water supply on Tuesday.
Vice Mayor Cody Gibby told Tulsa World that residents should not drink the water or use it for food preparation.
“The worms are in the water tower system,” Gibby said.
The worms are between a half an inch and an inch long, resembling centipedes.
“Bleach doesn’t even kill them,” Gibby added. “We don’t know what we are dealing with.”
“They are passing through our filters and getting into our distribution lines,” he told News 9.
Frank Gibby, of the town’s Emergency Management, told News 9: “We’ve had tornadoes come through here and wipe us out and ice storms. We’ve seemed to have managed.”