A man has been killed and two seriously injured after Halloween night stabbing attacks in south London.

The men were found in Gloucester Road in Croydon shortly after 8pm on 31 October, the Metropolitan Police said in a statement.

One man died at the scene and two others were taken to hospital in a serious condition.

The two men injured were aged 22 and 27 respectively, and the man who died was aged 22, police said.

A fourth man, aged 22, went to a south London hospital with stab injuries that are not believed to be serious.

Police have launched a murder investigation following the incident, and no arrests have been made, a Met spokesman said.

The man killed has not been formally identified and next of kin are being informed, the Met said.

Chief Superintendent Andy Tarrant said: "Whilst colleagues from the Homicide and Major Crime Command are investigating last night's fatal stabbing, my officers will be carrying out patrols across the borough to provide reassurance to the community.

"I would personally like to reassure people that attacks of this nature are rare and we are doing everything we can to catch those responsible.