Five teenage boys have been seriously injured after being stabbed at a Halloween party in Hampshire.

Police are asking for information about an “unknown group” involved in the incident.

The boys, aged 16 and 17, were found injured after police were called to a property in Eastleigh just after 10.30pm on Saturday.

All were taken to hospital with serious injuries, Hampshire and Isle of Wight Constabulary said.

After officers arrived at the scene, it was established an “unknown group” had gained entry to a party at a property in Park Road.

An investigation was launched and scenes remain in place in Park Road and Valley Road.

The junction of Park Road and Valley Road in Eastleigh (Google)

Senior investigating officer DCI Elizabeth Pirie said: "We are already hard at work identifying anyone who was at the party who may be able to assist our enquiries, whether that be having directly witnessed what took place, having filmed any footage which may be relevant, or who may be able to help us identify the…