Christchurch police have had to kill a dog during a search this morning.

Police executed a search warrant at a Yaldhurst Road property, which is known to the police for flouting the law.

A dog at the property was attacking a police dog, so they were forced to shoot it.

Senior sergeant Vaughn Lapslie says the area of the search was cordoned off.

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Vaughn Lapslie says investigations are still continuing at the address.