A number of schools across Bosnia’s Republika Srpska (RS) entity received email bomb threats, Wednesday morning, forcing some schools to cancel classes for the day.

Petrovo Municipality Administration spokesperson Sladjana Lazaravic confirmed that Elementary schools “Vuk Stefanovic Karadzic” and “Sveti Sava” received bomb threats and local news portals in the RS claim two other schools received such emails as well.

The RS Interior said they conducted bomb sweepes in some schools while others will be swept soon and that they found no bombs so far.

A similar situation happened in the Sarajevo Canton several days ago, when over a dozen schools received similar threatening emails, but no bomb was ever found by the police. Before this, Serbia was hit with a wave of bomb threats across the country and in many different institutions and establishments. These too proved to be false alarms.