Detectives are appealing for witnesses after two men were assaulted outside The Swan pub in Swan Lane, Wickford.
Police and the ambulance service were contacted at about 8.45pm on Friday April 1.
A 27-year-old man suffered a head injury and is currently being treated at Queen s Hospital in Romford.
A 30-year-old man suffered minor injuries.
Both victims are believed to be local to the area.
Enquiries are ongoing to establish the circumstances surrounding the incident and the scene has been secured.
Witnesses or anyone with information are asked to contact Basildon CID on 101.
Alternatively, they can contact Crimestoppers anonymously on 0800 555111 or www.crimestoppers-uk.org