The Northern Ireland Ambulance Service has warned that it is facing extreme pressures on 999 calls.
In a tweet on Saturday night from the NIAS account, it asked people to consider other options than calling 999 if possible.
"The BT 999 service is currently experiencing a continued significant increase in demand," the tweet read.
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"NIAS would ask callers to 999 to consider other options including self presentation to Emergency Departments.
"However for life threatening situations please do not hesitate to dial 999."
The Belfast Trust website for the NIAS 999 service gives the following advice around emergency and non-emergency calls.
"You should call 999 in the event that emergency medical assistance is required in a life-threatening situation following a serious accident, injury or illness. This includes, but is not limited to:
- Loss of consciousness
- Major blood loss
- Chest pains
- Difficulty breathing
- Severe burns/scalds
- Fitting/concussion
- Severe allergic reactions
- Choking
- Drowning
"In the case that it is not a life-threatening emergency, and immediate medical attention is not required, please consider other options before calling 999:
- Care for yourself or the patient at home, or see if family or friends are able to help
- Talk to your local pharmacist
- Visit or call your GP (or, if necessary, call the out of hours GP service)
- Visit your local Minor Injuries Unit
- Make your own way to A&E (you will not be treated any quicker by arriving in an ambulance)."
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