Chelsea manager Jose Mourinho has been arrested and cautioned after an argument with police over his pet dog.

Mourinho reportedly left the club's player-of-the-year awards night after his wife telephoned him to say their dog was being taken away.

Police wanted to put the dog into quarantine, fearing it had been taken abroad and then back to England without required vaccinations.

"Jose Mourinho can confirm that he was cautioned by police, and released without charge earlier this morning, after an incident involving his pet dog," a spokesman for the Chelsea manager said.

"The incident occurred due to a misunderstanding over documents required for veterinary regulations.

"Mr Mourinho would like to make it clear that his pet dog was bought in England from a reputable breeder and has had all its necessary inoculations. Full co-operation will be given to the authorities over any animal health issues."

A Scotland Yard spokesman said officers went to an address in central London at 7.45pm yesterday with an officer from the Animal Health and Welfare Service.

He said: "A 44-year-old man was arrested on suspicion of obstructing police and was taken to a west London police station.  He subsequently received a caution for obstructing police."

Scotland Yard said the dog was to be seized for alleged offences under the Animal Health Act of 1981 and the Rabies Order Act of 1974.