BATCHES of blood-red balloons were launched by Sheffield Lord Mayor Coun Sylvia Dunkley on Fargate to mark National Blood Week.
The event, which saw the release and race of 500 balloons, was designed to raise awareness of the importance of giving blood and to encourage new donors to come forward.
It was organised by the local branch of NHS Blood and Transplant - and similar releases took place all over the country.
The race took place on World Blood Donor Day, marking the birthday of Nobel Prize winner Karl Landsteiner who discovered the blood grouping system.
“It was all about raising awareness of the importance of blood donation, and was also a chance to thank blood donors around the region,” said Holly Mason who helped organise the event.
“And of course we want as many others as possible to join them - every week we hear amazing stories about how blood donation helps to save lives.”
Invited to Fargate were current blood donors, people who have had their lives saved using donated blood, and supporters from across the region, all celebrating the gift of life.
The week is being supported by famous faces including pop stars Sophie Ellis-Bextor and Jenny Frost.