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Four suspects have been arrested following an overnight arson attack at a synagogue in Rotterdam, in the Netherlands, Dutch police said today.

The fire broke out at the place of worship at around 3:40 a.m. local time, Rotterdam police said in a statement, in an apparent case of antisemitic violence in Europe amid the US-Israeli conflict with Iran.

Police said that the blaze was caused by an explosive device that detonated at the synagogue. The fire broke out for a short time before burning out by itself, police said, adding that no one was injured.

Police said that four suspects were arrested in the vicinity of another synagogue after a vehicle that was driving erratically drew the attention of authorities. The suspects are men aged 19, 18 and 17.

Police have called for witnesses to come forward.

Remember: It follows other recent attacks targeting Jewish communities outside of the Middle East.

In Belgium, a synagogue in the city of Liège was rocked by an explosion on Monday in what the city’s mayor described as an antisemitic attack, according to local media reports.

In Michigan in the US, a synagogue was targeted in a car-ramming attack on Thursday. Though the motive in that incident is still unknown, Michigan Attorney General Dana Nessel said that there’s a clear “nexus” between the Iran war and the attack, adding it’s no coincidence the suspect targeted a synagogue named Temple Israel.

CNN’s Rosanne Roobeek contributed reporting.