(CBS/WBZ/AP) STEWARTSTOWN, N.H. - Investigators searching for a missing 11-year-old girl, Celina Cass from Stewartstown, New Hampshire, found a female body in the Connecticut River Monday morning, but authorities didn't immediately identify it, a Vermont prosecutor says.
The body has not been identified yet. Authorities would not talk about the discovery and cleared reporters from the area, which is about a quarter of a mile from Cass's home, reports CBS station WBZ.
The body was found near a hydroelectric dam that spans the Connecticut River between Stewartstown and Canaan, Vt., Essex County state attorney Vincent Illuzzi said.
As the divers surfaced investigators blocked off the area and asked reporters to leave.
Celina was last seen in her house a week ago, Monday, July 25, at her computer. Investigators say there's no indication she ran away or someone took her, nor are there signs of a struggle.
The FBI has offered a $25,000 reward in the case.
Earlier Monday, Celina's stepfather, Wendell Noyes, was taken to the hospital by ambulance for treatment related to his history of mental illness
According to New Hampshire station WMUR, Wendell Noyes was rushed by ambulance to Upper Connecticut Valley Hospital.
Anyone with information is asked to call the state police at 603-846-3333.