North Wales Police says public safety is its prime concern, as officers "try to coax two young men off a roof in Wrexham."
There are trained negotiators at the scene, and Chester Street in the town remains closed.
The safety of the public, police officers and the offenders is our prime concern.
We appreciate that the situation is causing some disruption, but we would ask for the public's understanding and cooperation in allowing our trained negotiators at the scene to bring this incident to a safe and peaceful resolution.
More top news
Dry and clear overnight setting us up for a beautiful start to the Bank Holiday weekend!
Anita and David Lloyd from Bridgend have a special bond - six months before they tied the knot, Anita saved David's life.
Days after Theresa May visits Bridgend, Conservative leaders are accused of 'bullying' local members into choosing 'imposed' candidates