Several schools across Victoria have this morning enforced their emergency management plans after receiving anonymous threatening phone calls.

It is currently unknown how many schools are affected.

A Victoria Police spokeswoman told The Herald Sun police were aware that “a number of schools across the state have received a threatening phone call today.”

“Those schools have enacted their emergency management plans as a precaution,” she said.

Victoria Police is aware that a number of Victorian schools across the state have received a threatening phone call today. (1/3)

— Victoria Police (@VictoriaPolice) December 1, 2016

Those schools have enacted their emergency management plans as a precaution. (2/3)

— Victoria Police (@VictoriaPolice) December 1, 2016

Anyone with information is urged to contact Crime Stoppers 1800 333 000 or submit a confidential crime report https://t.co/EdheEU81pX (3/3)

— Victoria Police (@VictoriaPolice) December 1, 2016

More to come.