Accident w/ Entrapment (Arlington)

Engine 13 has requested the assistance of Quint 7 and Quint 9 at the scene of an earlier major accident with reported entrapment at Calendar Rd and Shady Ln. Engine 13 was first on scene around 9:30pm this evening with a vehicle vs. tree and 1 person trapped. Additional ambulance and EMS Supervisor were requested, but disregarded. Unknown severity of injuries.