Two thousand police officers have filled York Minster to pay tribute to colleagues killed in the line of duty on National Police Memorial Day.
Joining the congregation was Home Secretary Theresa May who read out a prayer during the service.
Association of Chief Police Officers President Sir Hugh Orde said: "The National Police Memorial Day provides an opportunity for the whole police family to come together and remember police officers who have died protecting the communities they served."
The memorial day comes after the recents deaths of two police officers in a grenade and gun attack in Manchester.
The chief constable of Greater Manchester police, Sir Peter Fahy, said the recent deaths of Fiona Bone and Nicola Hughes in the Mottram area made the day even more poignant.
He said: "It does give it a special poignancy because it's close after the deaths of Fiona and Nicola but the important thing today really is remembering all the officers who have given their lives during the year."
Dozens of chief constables packed into the cathedral, together with colleagues of all ranks and the families of officers who have died.