FIREFIGHTERS are battling a blaze at the BT building in Bangor. 

A spokesperson for the North Wales Fire and Rescue Service said there are currently four fire engines at the fire on Garth Road

North Wales Police is warning of potential disruption to telephone services across the region.

North Wales Chronicle: Photo courtesy of @Wjj66W / TwitterPhoto courtesy of @Wjj66W / Twitter

Broadband services across North Wales may have also been affected by the fire.

There are reports of internet disruption and internet provider Sky warned customers in the region they "may not be able to get online or make/receive calls".