As it happened: Female police officers killed in attack

Key Points

• Two unarmed female police officers, who died during a police operation in Tameside, Greater Manchester, are named as PC Fiona Bone, 32, and PC Nicola Hughes, 23.
• Chief Constable of Greater Manchester Police, Sir Peter Fahy, says the force is "devastated" and describes it as "one of the darkest days" in its history.
• Sir Peter describes their deaths as an act of "cold-blooded murder", saying the two officers were shot in the street after a hoax burglary call to an address in Mottram.
• Responding to the killings, Prime Minister David Cameron says they were an "an absolutely despicable act, one of pure evil".
• Dale Cregan, 29, is under arrest at a police station in connection with the officers' deaths and two previous murders.