Two victims were assaulted with a metal pole after a fight broke out between a large group of men in Luton town centre last night.
Police are now appealing for witnesses following the assault in Castle Street on Thursday March 31 at around 10pm.
Two men suffered serious head injuries in the attack.
Det sgt Emma Langwith said: “When investigating incidents like this, which involve large groups of people, it’s even more important for people to come forward if they have any information that could assist us.
“If you were in the area at the time of the incident, or you know who was responsible, please come forward.”
Anyone with any information is asked to call DS Langwith on 101, or contact the independent charity Crimestoppers anonymously on 0800 555 111