People can check their eligibility to give blood by completing the ‘New Donor Eligibility Quiz’ on the IBTS website.

Director of donor services and logistics, Paul McKinney, said the supply of O positive blood is "very low" at 3.5 days.

Ahead of World Blood Donor Day tomorrow, the Irish Blood Transfusion Service (IBTS) in Cork is appealing for donors to come to a clinic in the city this afternoon, Thursday 13

There are supplies for three days he told RTÉ radio’s Morning Ireland. It would be better to have supplies for seven days, he explained.

The Irish Blood Transfusion Service has issued an appeal for regular donors as supplies are running low