State Police investigating how New Hampshire woman's body wound up on train tracks in Allston

State Police detectives found the body of a 29-year-old woman from New Hampshire at the old Beacon Park rail yard around midnight and are now trying to determin how she wound up there, the Suffolk County District Attorney's office reports:

The cause, manner, and circumstances of the woman's death were not immediately apparent and remain the subject of an active investigation. No charges have been sought at this time.

Her body was found on the tracks under the inbound side of the turnpike, the DA's office says.

Police believe they know who she was but are not releasing her name pending the investigation.