Three men were taken to hospital with injuries including a broken jaw after they were assaulted by a group at a Derbyshire pub.
Police were called to The Midland, in Killamarsh, on Sunday, just after 8pm, and found four men had been attacked.
A spokesman for Derbyshire Police said: “We understand some of the suspects were carrying metal bars.
“It is alleged a group of men had returned to the pub following an earlier altercation and assaulted the victims.”
Men aged 33, 27 and 24 were taken to hospital.
A fourth man, aged 26, suffered minor injuries.
Police are now investigating and appealing for information about the incident.
n Witnesses or anybody with information can call the force on 101.