A 16-year old boy has been stabbed at a secondary school in Melbourne’s north-west this afternoon.

Police have been told a group of up to seven people armed with machetes accessed the school grounds and sought the teen out.

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The investigation into the incident is ongoing and anyone with footage or information is urged to contact Crime Stoppers on 1800 333 000 or visit www.crimestoppersvic.com.au.

Image: Nine