Key Facts

• An 18-year-old man has been arrested on suspicion of murder and attempted murder in Cefn Fforest, Wales.
• A 17-year-old girl died at the scene, and a 56-year-old woman is in the hospital.
• Police and ambulances, including air ambulances, responded to the scene around 07:15 GMT.
• The police are not seeking additional suspects in this case.
• Crime officers have cordoned off the area and are investigating the scene.
• Residents in the area may notice increased police activity.
• Police urge anyone with information about the incident to contact them.