Here is a timeline of how events unfolded.
• 10.35am
Police are called to Duke Street in Whitehaven after reports of gun shots being fired.
A warning is then issued to residents of Whitehaven, Egremont and Seascale to remain indoors.
• 12.18pm
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Hide AdPolice confirm that "a number of people" have been killed and injured in a series of shootings.
• 12.41pm
Police name the suspect as Derrick Bird, 52, from Rowrah, near Frizington, and a photograph is issued.
• 13.04pm
Radio Cumbria reports that at least four people are feared dead as police reveal that Bird has abandoned his car near Boot and is now believed to be on foot.
• 14.03pm
Police say a body, believed to be that of Bird, has been found in a wood near Boot.
• 17.04
Cumbria Police say that 12 people were killed and 25 wounded in the spree. They also said there were 30 separate crime scenes.
• Key locations in the Derrick Bird shooting spree in Cumbria
• Cumbria Police hunt gunman behind fatal shooting spree
• Eyewitness accounts: 'We heard a couple of gunshots and the police running about'
• Prime suspect Derrick Bird was a 'nice lad'
• Police statement on the Cumbria shootings