A teenage boy is suffering from serious injuries after being stabbed at a house party in Scarborough overnight, police say.

Police received reports of an altercation between two groups of teenagers around 11:55 p.m. on Saturday at a house near Blue Anchor Tr. and Port Union Rd.

According to police, a teenage boy was stabbed and rushed to hospital by paramedics. He is in serious but non-life-threatening condition.

Police arrested one teenager. No charges have been made public.

The stabbing is the second to occur at a party of young people in the past week. On Thursday, five people were injured due to a stabbing at a fraternity in the Annex, and one of them has since succumbed to his injuries. Two teenagers were arrested and charged in connection with the incident.