A pet owner was being sought by police last night after he and two friends allegedly broke into an animal centre to try to recover his dog, which had been seized from his Aberdeen home on suspicion of being an unlicensed fighting breed. The raid, classified by police as an attempted burglary, was discovered after a security guard, 50, was alerted by a dog barking at the Agriculture, Fisheries and Conservation Department's animal management centre on Victoria Road, Western, at 1.30am. Three men fled empty-handed in a white goods van when the guard went to investigate. Police were contacted after the padlock at the main gate was found broken. Officers later intercepted a goods van on Waterfall Bay Road outside Wah Ming House in Wah Fu Estate, Aberdeen, and arrested two men, aged 19 and 20. The dog owners' identity card and a leash were allegedly found inside. Yesterday, detectives from Western visited the dog owner's Pokfulam Village house in Aberdeen, but found no trace of him. A police spokeswoman said the case was probably the first of its kind at the department's animal management centre. The dog, believed to be a pit bull terrier, was seized at about 4.30pm on Monday after the department received a complaint. Police were called in when the man refused to surrender his dog. The police spokeswoman said a pit bull cross or pit bull terrier was classified as a fighting breed and required a special licence. The dog is being kept at the centre in Western awaiting examination by the Dogs and Cats Classification Board. It is illegal to breed fighting dogs in Hong Kong or to import them.