Police have arrested a teenager after an ambulance was attacked while its paramedics treated a woman in the back of the vehicle.
Officers were called by the ambulance service to the incident around midnight in Macdonald Crescent, Stoke-on-Trent.
The side window of the vehicle was smashed in the incident and has been taken off the road while repairs are made.
A 19-year-old man from Stoke-on-Trent has been arrested.
A West Midlands Ambulance Service spokesman said any attack on its vehicles, staff and patients is 'completely unacceptable'.