Specialist paramedics are currently working to rescue a suicidal woman from a woodland.
Emergency services could be seen in a small industrial estate off Butts Road in Chiseldon, near Swindon, where they were responding to a report of a welfare concern tonight.
At 9.45pm, in convoy, a police drone unit, ambulance and Hazardous Area Response Team (HART) unit made their way to Hodson Road to access the woods via a bridleway between there and Butts Road.
The condition of the casualty is currently unknown.