ANCHORAGE - Alaska state troopers have arrested the mother of Bristol Palin's boyfriend on drug charges.
Sherry L. Johnston was arrested Thursday after troopers served a search warrant on a Wasilla home. The 42-year-old Johnston has been charged with six felony drug counts.
Troopers did not identify the drug involved in a brief mention on the agency's Web site.
However, trooper spokeswoman Megan Peters said late Friday in a news release that the charges were in connection to the drug OxyContin, a strong prescription painkiller sometimes called "hillbilly heroin" on the street.
Johnston is the mother of 18-year-old Levi Johnston. Alaska Gov. Sarah Palin, the GOP nominee for vice president, announced in September that her 18-year-old daughter, Bristol, was pregnant and Johnston was the father.
Sherry Johnston was released from jail in Palmer on $5,000 bail.
Peters said few details could be immediately released Friday.
"It's an ongoing investigation and it's the investigator's prerogative to not release any information that they feel will hamper an ongoing investigation," she said.
No other person has been charged in the matter, she said.