Roadside blood transfusions helped save 18 lives in Cumbria and the north-east, in the first year of the Great North Air Ambulance's 'Blood on Board' project.
Between April 2015 and March 2016, the air ambulance treated 846 patients - the aircraft base at Langwathby, near Penrith, attended 462 incidents.
In the first year of the Blood on Board project, more than 800 cool boxes were transported by Blood Bikes Cumbria and Northumbria Blood Bikes, to the two air ambulances bases at Langwathby and Darlington.
The majority of people treated during the project were young men involved in road traffic collisions.
83% of cases were high speed collisions and the rest were due to incidents involving crushing and assaults.