The RSPCA is trying to trace a man who was caught on CCTV kicking a cat "very hard" in the air.
Millie the cat has been left with a suspected broken jaw following the attack, which the RSPCA described as "sickening."
The video shows two men walking towards Millie in Derby. One of the men then kicks her and she flies several feet into the air.
It is thought the incident happened at about 16:25 GMT on Thursday 12 January, outside the Guinness Trust flats on Sidney Street.
RSPCA inspector Sarah Burrows, said:
"It is an unprovoked attack which has sadly left Millie with a suspected broken jaw.
"Inflicting such a horrific attack on a defenceless cat is sickening and it's important we track down the people responsible."
The charity has asked anyone with any information to contact them. They warned that anyone found guilty of causing unnecessary suffering to an animal could face up to six months in prison and a fine of up to £20,000.
If you have been accused of an animal cruelty offence, call our team for confidential legal advice. Speak to us today on 01332 370 473.
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