The York County Sheriff's Office in South Carolina has charged a Clover mother after two children tested positive for amphetamines, deputies said.

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Authorities charged 22-year-old Jessica Messer, who was on probation for child neglect, with child neglect. 

Officials said the Department of Social Services told deputies that a 4-year-old and 1-year-old in Messer's care had tested positive for narcotics.

The 4-year-old tested positive for amphetamines, while the 1-year-old tested positive for amphetamines and cocaine, deputies said.

Messer is identified as their mother, according to Trent Faris, spokesman for the York County Sheriff’s Office.

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A week before the children tested positive, Messer was sentenced to probation after pleading guilty to child neglect, burglary and conspiracy, court records said, according to WSOC-TV's partner at The Herald.

A three-year prison sentence was suspended in that case.