People across County Durham are being asked to remain calm following the Manchester terror attack on Monday.
Durham Police is making the request after the Prime Minister Theresa May raised the UK’s terror threat level from ‘severe’ to ‘critical.
It means another terror attack is considered imminent.
Twenty two people died at the Ariana Grande concert at Manchester Arena and a further 100 people are injured or missing. Many of the injured are being treated for life threatening injuries.
Of the missing, four are young people from the North East: Courtney Boyle and Philip Tron from Gateshead and Chloe Rutherford and Liam Curry from South Shields.
Another two are from York.
A statement on Durham Constabulary’s Facebook page read: “The UK threat level has been increased to ‘Critical’.
“Everyone should remain vigilant and report any suspicious activity to the anti-terrorist hotline 0800 789 321, police on 101, or 999 in an emergency.”