Pupils in Groningen province have been sent home after a threatening email was sent to an international school, police have confirmed.

The International School Groningen, in Haren and the neighbouring Maartenscollege were closed on the advice of police before classes began. The contents of the relevant message have not been disclosed.

Students on their way to school were sent messages telling them the school would not reopen on Monday. Police said shortly after midday that nothing suspicious had been found and the schools are expected to open as usual on Tuesday.

Op internationale school in #Haren is een bedreiging binnen gekomen via e-mail. De politie doet onderzoek en leerlingen zijn geïnformeerd.

— Politie Groningen (@polgroningen) October 24, 2016