Police in Hungary say they are investigating bomb threats that were sent to more than 240 schools across the country, resulting in classes being cancelled at some schools.

Emails containing a bomb threat were sent to multiple educational institutions in Hungary on Thursday morning, causing them to temporarily shut down out of precaution, the National Police Headquarters (ORFK) said.

Hungarian Prime Minister Viktor Orbán has announced heightened security measures and ongoing investigations following the series of bomb threats that disrupted schools across Hungary.