People are being urged to donate blood as supply levels dip.

The national blood supply has reduced to just 3 days and the the Blood Board needs an extra 1,500 donations over the next 3 weeks to stabilise the supply.

1 in 4 of us will need a transfusion at some stage in our lives.

Susan Keogh has been speaking to National Donor Services Manager Stephen Cousins about what they are looking for: