Australians have been called upon to donate blood after the bushfire in New South Wales and Queensland has affected the national supply.

Donor centers in New South Wales at Taree, Coffs Harbour, Port Macquarie, and Byron Bay have been forced to close down, while appointments at  Maitland, Newcastle and Gosford centers are also expected to be canceled.

As Queensland and New South Wales make up over half of Australia’s total blood supply, Red Cross Blood Service spokesperson, Helen Walsh, has urged people throughout the country to donate blood to fill up the gap.