The Norwegian Medicines Agency said on Saturday that there were four new cases of severe blood clotting in adults after getting the vaccine.
Ireland’s National Immunization Advisory Committee (NIAC) made the directive as a precaution, although “it has not been concluded that there is any link between the AstraZeneca vaccine and these cases,” the agency said in a statement.
Ireland’s NIAC will meet again on Sunday to discuss suspension of the vaccine, he added.
Austrian health officials were the first to raise the alarm about the potential dangers of the vaccine, suspending a batch of doses on Tuesday.
Italy on Friday banned the use of vaccines for a specific batch of doses of AstraZeneca after the death of a military man in Sicily, who died of cardiac arrest a day after receiving his first dose of the vaccine.
Denmark, however, on Thursday became the first European country to temporarily suspend the entire launch of the AstraZeneca vaccine.
The European Union’s drug regulator, EMA, is currently investigating whether the injection could be related to a series of reports of blood clots.
“There is currently no indication that vaccination has caused these conditions, which are not listed as side effects with the vaccine,” said the EMA in a statement on Thursday.
So far, more than 110,000 doses of the AstraZeneca vaccine have been administered in Ireland, accounting for about 20% of all doses in the country, according to state broadcaster RTÉ.
CNN contacted AstraZeneca for comment.
Niamh Kennedy reported from Dublin and Lindsay Isaac reported from London.