Police launch a murder investigation after a fatal stabbing in Crystal Palace, south-east London. Officers are called to Westow Hill at 3.39am on Sunday following reports of a stabbing, with the London Ambulance Service reporting the initial incident. Emergency responders find a man with stab injuries; he is treated at the scene. Shortly afterwards, police locate another man in the Westow Hill area with stab wounds. He dies at the scene. Police describe the second man found as being in his 30s, with Metro reporting the deceased as 30. The injured man is also reported to be in his 30s and is taken to hospital. His injuries are described as neither life-threatening nor life-changing, according to Metro. The Metropolitan Police arrest a man on suspicion of murder. Police presence and a cordon affect some local businesses, with road closures reported in the area. Detectives ask for anyone with information to come forward as inquiries continue, led by Detective Chief Inspector Sarah Lee.