A teenage girl suffered a fractured jaw following an alleged assault outside a Telford nightclub.
The 16-year-old girl was taken to the Princess Royal Hospital following the incident outside Pussycats, in Wellington, on Saturday.
Police said she had a double fracture to her jaw and has undergone surgery.
A 17-year-old girl was later arrested on suspicion of assault and bailed while police investigations into the incident continue.
A Telford police spokeswoman said: "Police received a call to an alleged assault outside Pussycats nightclub in the early hours of Saturday.
"When we arrived the victim was surrounded by a number of people.
"We spoke to a number of individuals but would ask anyone who saw anything and didn't speak to us on the night to come forward.
"The victim, who had been attending an under 18's disco, suffered nasty injuries and has had to undergo surgery."