This is stated on Twitter by the Amsterdam police.

“On Wednesday morning (February 12, - RT ), an explosion occurred in the office of the postal company,” the statement said.

In een postkamer van een bedrijfspand aan de Bolstoen heeft woensdagochtend even voor 8 uur een explosie plaatsgevonden, vermoedelijk veroorzaakt door een bombrief. Geen gewonden. Woordvoering politie komt ter plaatse.

- Politie Amsterdam eo (@Politie_Adam) February 12, 2020

According to preliminary data, the explosion could have been caused by an explosive device.

“There are no injuries. The police went to the scene, ”the report says.

Earlier it became known that an explosion occurred in a residential building in the Bulgarian city of Varna, as a result of which one woman died, another 11 people were injured.