This morning, Sunday, June 25, Britons were urged to not call the emergency 999 phone number. 

The issue has now been resolved but the reasons behind the technical BT fault remain unclear.

The service lost connection to a number of police forces across the UK, the Metropolitan Police reported this morning. 

Brits were told to call 101 for an emergency.

Emergency 999 phone number not working 

In a Tweet shared by the Met Police, they said: "⚠️ Due to a technical fault that is impacting a number of police forces, many 999 calls are not connecting. 

"📞 Until further notice, please call 101 in an emergency. 

"🚫 Please ONLY call in an emergency and please wait until later to make any 101 non-emergency calls."

Other forces across the country shared the same message, including Greater Manchester Police, Bedfordshire Police and South Wales Police, the Mirror reports. 

Police services were not the only ones impacted by the outage as Lincolnshire Fire and Rescue also tweeted telling people to call 111 for a medical emergency. 

Tweeting: "URGENT - the National 999 system is experiencing issues, in case of an emergency please contact Fire on 01413 979351 - dial 101 for police and 111 for medical emergency."