Police charity run for PCs Fiona Bone and Nicola Hughes
Police officers around the country have started a 125-day running challenge in memory of two colleagues murdered by Dale Cregan in Greater Manchester.
PCs Fiona Bone, 32, and Nicola Hughes, 23, were shot dead when lured to a fake burglary in Hattersley last year.
PC Hughes's parents have launched the Run To Remember campaign to raise money for the PC Nicola Hughes Memorial Fund.
Officers from forces around the country will aim to clock up 250 miles (400km) between now and April.
Earlier PC Hughes's father, Bryn Hughes, from Huddersfield, led runners from Greater Manchester Police at the start of their running challenge at Dovestone Reservoir in Saddleworth.
His wife Natalie led a team of runners made up of officers from across Yorkshire.
She said: "Your world falls apart in a split second and as a family we needed something positive to focus on.
"The fundraising we've done and establishing the charity has given us a reason to get up everyday."
Other forces taking part include Cheshire, Merseyside, Guildford, Kidlington, Avon and Somerset.
In April next year, Mr Hughes is also due to take part in the North Pole Marathon.
Dale Cregan, 30, was given a whole-life sentence in June for the murders of the two officers.
He was also jailed for the murders of father and son David and Mark Short.