The National Immunisation Advisory Committee (NIAC) has recommended that the use of the AstraZeneca COVID-19 vaccine in Ireland should be "temporarily deferred".
The advice comes following information from the Norwegian Medicines Agency of four new reports of "serious blood clotting events" in adults after the vaccine had been administered.
In a statement, the Deputy Chief Medical Officer Dr Ronan Glynn said "it has not been concluded that there is any link" between the AstraZeneca inoculation and these cases.
"However, acting on the precautionary principal, and pending receipt of further information, the NIAC has recommended the temporary deferral of the COVID-19 Vaccine AstraZeneca vaccination programme in Ireland," he added.
The suspension takes effect immediately.
