The very first thing to do after any accident is STOP, no matter how minor it is.
Then, remove yourself from danger as quickly as possible. Start by turning your engine off and putting your hazard lights on to alert other motorists that you've had to stop.
It's then time to leave your vehicle and stand in a safe location well away from it. This is particularly important if there's a risk of fire, and to also minimise the chances of you being hit by another vehicle.
What if somebody is injured?
If somebody is injured or trapped in a vehicle following an accident, call 999 immediately.
Reassure the patient as best you can, and try to keep them warm and comfortable while you wait for the emergency services to arrive.
It's generally not advised to move a casualty following a road accident, in case of any underlying injuries. However, you may be able to carry out some simple first aid, if you feel confident doing so.
When should you call the police?
You should notify the police of an accident within 24 hours of it occurring, as per Section 170 of the Road Traffic Act 1988.
You should also inform the police immediately if an accident took place on a motorway, there's damage to street furniture, or if a road is blocked.
Remember: only call 999 in an emergency – 101 will suffice in non-emergency situations with no police involvement.