BRUSSELS, Belgium, March 14, 2026 (BSS/AFP) - An overnight blast against an exterior wall of a Jewish school in Amsterdam did not cause any injuries, Mayor Femke Halsema said Saturday, denouncing "a cowardly act of aggression".

An investigation has been opened and the incident comes after nighttime attacks this week in front of synagogues in the Belgian city of Liege and the Dutch port city of Rotterdam.

Haslema condemend the attack in a statement, noting that Amsterdam's Jewish community has been "increasingly often confronted with antisemitism and this is unacceptable."

"A school must be a place where children can attend classes in complete safety. Amsterdam must be a place where Jews can live in safety," she said.

The police and fire departments quickly arrived at the scene of the blast in Buitenveldert district in the south of Amsterdam, the statement said.

"The material damage is limited," the mayor said.

The police have CCTV footage of a person placing the explosive device, Halsema said.

On Friday, following the explosion outside a synagogue in Rotterdam, Dutch authorities announced the arrest of four men suspected of being involved in the attack.