UNION, Mo. (AP) — A Franklin County jail guard is under investigation after four inmates said they became ill from eating pizza tainted with pepper spray.

KTVI-TV (bit.ly/1pdbPlb ) reports that an unidentified deputy has been suspended with pay pending an internal investigation.

Franklin County Sheriff Gary Toelke says the guard told him that he accidently sprayed Mace on the pizza after test-firing a tear gas canister in a janitor's closet sink. The deputy said that inmate Ricky Walton entering the supply closet to get a roll of toilet paper and took the pizza on his own.

Walton's sister questioned the deputy's explanation, given the tight jail security she's observed.

___

Information from: KTVI-TV, http://www.fox2now.com/