Four individuals were "sprayed with an unknown substance" on the campus of the University of Greenwich.

Shortly after midnight, police were summoned to the university on Avery Hill Road after hearing complaints of a man being beaten and doused with the unknown substance.

Before authorities discovered three other individuals who had also been sprayed with the non-toxic material, emergency personnel discovered a man who had suffered head injuries.

It is thought that none of the victims sustained injuries that would have changed their lives or posed a threat.

According to the Met Police, urgent investigations are still underway and no arrests have been made. There is still evidence of a crime scene.