A special memorial service has been held in Sheffield to honour police officers who died while working for the force.
Dozens of officers attended the service at Sheffield Cathedral this afternoon.
A spokesman for the force told members of the public they should not be alarmed by the increased police presence in the area.
It gave officers a chance to remember the life of PC Dave Fields who was killed in a car crash in Sheffield on Christmas Day.
PC Fields, aged 45, was responded to an incident when he collided with a Citroen C3 the A57 near Coisley Hill and the Shirebrook Nature Reserve, close to the Mosbrough Parkway.
Lorraine Stephenson, 61, a passenger in the Citroen, also died in the crash.