CRYSTAL BEACH, Texas -

A 12-year-old girl was found safe Monday morning after, investigators said, she wandered away from a home.

Galveston County sheriff's deputies said the girl's parents called to report her missing around 1:00 a.m. Monday. 

According to her parents, the girl, who is autistic, vanished from her grandparents' home in the Emerald subdivision in Crystal Beach.

Shortly before 5 a.m., the girl was seen on the ferry coming from Bolivar to Galveston, investigators said. A security guard later located her on the Galveston side of the Bolivar Ferry.

The girl was not injured.

Detectives said the do not suspect foul play, but they're investigating just to make sure everything is OK.