As a number of GPs across the region do not yet have certainty on the delivery of vaccines ahead of the weekend, Mayo TD Dara Calleary says he's been "pulling his hair out" trying to get information from the HSE on the rollout.

 Deputy Calleary was one of a number of Fianna Fáil TDs who criticised the pace of the vaccine roll-out, particularly for those aged over 85.

Speaking at the FF Parliamentary party meeting last night, he said he had little faith in the HSE to deliver - given some experiences.

It comes as the health service failed to hit the Government's target of administering 100,000 doses last week, with supply issues blamed.

However, the HSE maintains the majority of over 85's will receive their first vaccination by the end of this week.