A man has been arrested on suspicion of murder after the death of a woman and child in Wales.

Police were called to an address in Porthmadog, Gwynedd, at 9.20pm last night and the pair were declared dead at the scene.

A man in his 40s was arrested at the scene.

Police say they are not looking for anyone else in connection with the incident.

Next of kin have been informed and family members are being offered support by specialist officers.

Officers remain at the scene, and the deaths are being treated as a major incident, police said.