The so-called Croydon cat killer has supposedly struck in Beckenham, just six days after police denied human involvement in the deaths of hundreds of pets.

It is the first known cat killer case since the police’s shock announcement.

After a three-year investigation, the police concluded on September 20 that foxes were the most likely cause for the mutilation of pets.

However, a cat has now been found dead in Beckenham and its suspicious injuries are said to have the "hallmarks" of the person dubbed the Croydon cat killer.

South Norwood Animal Rescue and Liberty (SNARL) has vowed to continue its own investigation into what it believes are sinister killings.

Boudicca Rising, of SNARL, confirmed it was called to Beckenham on Wednesday (September 26).

She told News Shopper: “We attended and are investigating the hallmarks of the UK animal killer series.

“It is the first confirmed case we know of since the police released their statement.”

No further details about the case have been disclosed.

It is the second incident in recent months where a cat was apparently targeted in Beckenham.

Kids found a dead cat on their driveway on August 1, which SNARL believed was another 'Croydon cat killer' victim.

READ MORE - Croydon cat killer's latest victim found by kids in Beckenham

The Met Police wrote in their statement last week: "The investigation took almost three years, due to the number of reports and allegations received from the public and the need to work with specialists to scrutinise any evidence.

"No evidence of human involvement was found in any of the reported cases. There were no witnesses, no identifiable patterns and no forensic leads that pointed to human involvement. Witness statements were taken, but no suspect was identified."