Ambulance tyres slashed as paramedics help west London crash victim
Two ambulance tyres were slashed while paramedics helped a pedestrian who was critically injured in a road accident in west London.
The wheels of the parked response car were attacked while crews treated a man who had been hit by a car on the A40 in Greenford at 23:00 BST on Saturday.
Police said they had to use CS spray to detain the man, who remains in custody at a west London police station.
The pedestrian, aged in his 40s, is in a critical condition in hospital.
Scotland Yard said the man who attacked the ambulance was "arrested on suspicion of criminal damage and possession of a bladed article".