The vaccine will not be used until at least March 29, 2021, as a precaution, the Dutch government said in a statement.
The announcement will lead to delays in rolling out of shots in the Netherlands, which had pre-ordered 12 million doses of AstraZeneca’s vaccine.
Health authorities had scheduled around 290,000 AstraZeneca injections in the coming two weeks.
The move, which follows a similar decision by Ireland earlier in the day, is based on reports from Denmark and Norway of possible serious side effects, the government said.
The Norwegian health authorities had said on Saturday that three health workers in Norway who recently received the vaccine were being treated in hospital for bleeding, blood clots, and a low count of blood platelets.
No such cases had been found yet in the Netherlands, the Dutch Health ministry said, adding there was no proof yet of a direct link between the vaccine and the reports from Denmark and Norway.
“We can’t allow any doubts about the vaccine,” Dutch Health Minister Hugo de Jonge said.
“We have to make sure everything is right, so it is wise to pause for now.”
However, AstraZeneca said that a review of safety data of people vaccinated with its COVID-19 vaccine has shown no evidence of an increased risk of blood clots.
The Dutch government said there was no reason to stop using the AstraZeneca vaccine, as the European Medicines Agency (EMA) said there was no indication it could cause blood clots.
However, De Jonge insisted that his decision was informed by new reports, which would now be investigated by the EMA.
Also, Denmark, Norway and Ireland, Iceland have also suspended the use of the vaccine over blood clotting issues, while Thailand became the first country outside of Europe to do so on Friday.
Italy’s northern region of Piedmont on Sunday said it would stop using a batch of AstraZeneca vaccines after a teacher died following his vaccination on Saturday. Austria also stopped using a particular batch last week.