State police are seeking help in finding a 16-year-old Amish girl who went missing, possibly to flee her Jefferson County community and "turn English."

Police said Sarah D. Troyer is "possibly dressing in mainstream clothing as opposed to her traditional Amish clothing," and was last reported seena week ago in Clintonville, Venango County. She was reportedly with her brother, David, who is not considered missing, because he is 18.

Two weeks ago, police said, a man named Fred Dilts, 52, took Ms. Troyer, her brother, and a friend, Noah Yoder, 17, to his house in Indiana County in a black Hyundai Elantra sedan.

Noah Yoder returned the next day, but Ms. Troyer and her brother stayed with Mr. Dilts, who "knows the Amish community," but whose relationship to the Troyer family remains unknown, Trooper Gordon Watt said. Police don't suspect foul play in her disappearance, he said, and don't believe she is in any immediate danger.

"She said she wanted to turn English or be English, which typical of this age for Amish kids," Trooper Watt said. "They think the grass is greener. They're like any other teenage kid."

He said Ms. Troyer's disappearance is unrelated to the Amish practice of Rumspringa, in when teens leave their families to decide whether to remain in the church or leave the community forever. During Rumspringa, the teens' families know where they are, Trooper Watt said.

Ms. Troyer's father reported her missing Thursday as a runaway and is "very concerned," Trooper Watt said.

Jefferson County and Clearfield counties have a sizeable Amish population, so state police occasionally investigate such cases.

Police said Ms. Troyer is 5 feet tall, weighs 90 pounds, and has brown, straight hair and brown eyes. She is likely wearing "American culture clothing" -- possibly a sweatshirt and jeans.

Anyone with information on her whereabouts should call state police in Du Bois at 814-371-4652.