A 20-person brawl outside a village pub near Preston left a woman with a fractured hip.
Lancashire Police were called to the mass fight outside the Village Inn pub in Marks Square, Tarleton.
The incident on Saturday 9 June, around 7.30pm, saw up to 20 people involved in the fight.
A 57-year-old woman was struck in the face and fell to the floor fracturing her hip.
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Sergeant Craig Appleton said: “This is a shocking incident where a completely innocent bystander has been subjected to an unprovoked attack that left her with serious injuries.
“We would encourage members of the public to come forward if they witnessed this incident or if they have any information which could assist.”
Anyone with information is asked to call police on 101 and quote log reference number 1492 of June 9.