WILLIAMSPORT -- An offer to sell an Access benefit card on Facebook helped Lycoming County probation officers track down a Williamsport woman wanted for violating her probation.

Tanya Keenan-Mack, 49, of Williamsport, is in jail for violating her probation, but she could face charges because it is illegal to sell food stamp benefits.

She was picked up Monday, a day after a Facebook post under the headline "My Food Stamps at Half Price" stated an Access Card with $194 in benefits would be sold for $100. "I'm looking to sell them ASAP," the post stated.

Keenan-Mack will remain in prison until a probation violation hearing scheduled Feb. 16. Scott Metzger, deputy chief probation officer, would not disclose her alleged violation other than it was unrelated to the Facebook post.

The reason will be made public at the hearing, he said. Keenan-Mack had pleaded guilty to a forgery charge in county court on Oct. 10 and was placed on probation for a year.

The investigation into the Access Card incident will be conducted by the state Inspector General's Office.

People are told when they receive benefits it is against the law to sell or exchange them, a spokeswoman said Tuesday.

The office conducts hundreds of investigations, both of people misusing their benefits and stores that allow patrons to use them for unauthorized purchases such as cigarettes, she said.

An individual found guilty of misusing benefits could be disqualified from receiving them for as little as a year or for life, she said.

She encouraged those aware of possible fraud to contact the Welfare Fraud Tip Line at 800-932-0582.