A gang of teenagers attacked a couple in Spalding’s Commercial Road, knocking them over and kicking them on the ground.
Police say a 40-year-old woman went to Boston’s Pilgrim Hospital for treatment to her injuries following Saturday night’s attack, but was released from hospital the same night.
The second victim was a man of 38.
Police say the couple were approached by “a large group of teenagers, who knocked them to the ground and proceeded to kick them” at about 11.30pm.
A Lincolnshire Police spokesman said: “Police are particularly interested in talking to a female, aged around 16, with shoulder length blonde hair, who was wearing a short black skirt, black jacket and black top.”
Witnesses are asked to call PC Emma Boxall on 101 and quoting incident number 490 of March 8 or call Crimestoppers anonymously on 0800 555111.