Police say a pit bull has attacked and killed a Chihuahua. The attack happened outside a house in Waterbury on Sunday.

Lt. David Silverio said the canines lived in the same house but with separate families and did not get along.

The dogs' owners said they usually kept them apart but on Sunday afternoon they were let outside together and the pit bull attacked.

Silverio said the pit bull's owner was not home at the time.

The pit bull was taken to the Waterbury Dog Pound. The animal control department will follow up on the investigation.