Vermont State Police said Sunday the uncle of a missing 12-year-old girl _ one of the last people to see her before she vanished _ has been arrested on unrelated sex charges.

Michael Jacques, 42, of Randolph, who dropped off Brooke Bennett at a convenience store Wednesday and was seen leaving it in a different direction on a surveillance camera video, was charged with aggravated sexual assault against a minor. The alleged victim wasn’t Bennett, who remained missing Sunday, despite an intensive search by state police, the FBI and other agencies.

Jacques, who is married to Bennett’s mother’s sister, is listed on Vermont sex offender registry. He was convicted of sexual assault and kidnapping in 1993.

The arrest came as the result of information uncovered by investigators assigned to the disappearance.

Jacques was being held at the Southern State Correctional Facility in Springfield, pending an arraignment Monday. If convicted, he could get 10 years to life in prison.

Police said Jacques and a cousin of Brooke’s dropped the girl at Cumberland Farms in Randolph about 9 a.m. Wednesday. On the video, which was released Friday, Jacques and Brooke are seen in the store, where Jacques makes a purchase with Brooke at his side. They walk out together, then part ways. She was seen about 45 minutes later inside a coin laundry, police said.

Her grandmother reported Bennett missing 12 hours later, and on Thursday an Amber Alert _ the first in Vermont history _ was issued for Brooke.

Police have said they believe Brooke may have been headed to meet someone with whom she had been communicating online. On Friday, Vermont State Police director Col. James Baker said the investigation centered on contacts Brooke made on the MySpace.com social networking site.

No suspects have been named in her disappearance.