Call 999 in a medical or mental health emergency. This is when someone is seriously ill or injured and their life is at risk.
These emergencies can include:
Call 999 immediately if you think you or someone else is having a heart attack or stroke. Every second counts with these conditions.
Also call 999 if you think someone has had a major trauma, such as after a serious road traffic accident, a stabbing, a shooting, a fall from height, or a serious head injury.