The Cú Chulainn Blood Bikes group is appealing for volunteers.
The group is one of a number operating across the country.
They provide urgent, out of hours transport of blood, human tissue or patient documents to hospitals and other facilities across the country.
The group is a voluntary organisation and relies on donations as it gets no funding from the Department of Health or HSE.
The Cú Chulainn group is based in the north east and transports between hospitals across the region.
Secretary of the group Robert Babington outlines what kind of work the volunteers do: