Police in Northern Ireland say they have identified online exchanges between rival groups of local football supporters who are challenging each other to pre-arranged fights following a number of recent incidents.

Police Service of Northern Ireland Football Co-ordinator, Inspector Gary McCullough said: "The overwhelming majority of fans that attend matches do so to support their club and to have an enjoyable day out with friends and family. They do not want disruption, disorder or criminal behaviour of any kind inside or outside the grounds. "At football matches, or indeed any event which draws significant numbers of people, police work closely with stewards and event organisers to ensure the delivery of a safe event. It is critical that anyone who chooses to engage in violent confrontations with other fans should understand that their behaviour is unacceptable and if detected by police, will face consequences that can be far reaching and can seriously impact on their future opportunities for work and travel.

"To parents and guardians, please help prevent young people from becoming involved in these activities. Know where your children are, who they are with, what they are doing and what they are arranging on their social media accounts.

"We will continue to work with football clubs to address any criminal activity linked to people attending matches and ensure that supporters are kept safe.

"If you have information which could assist police address this issue please get in touch with us on the non-emergency number 101.

"Alternatively, information can also be provided to the independent charity Crimestoppers on 0800 555 111 which is 100% anonymous and gives people the power to speak up and stop crime."