A woman was found dead and a man badly injured in Milverton after a shooting Tuesday night.
Another man was arrested at the house by Perth County Ontario Provincial Police.
Emergency services responded to a 9-1-1 call about 10 p.m. at 11 Edward St. in Perth East.
The injured man was taken to hospital in London, police report.
Detectives ask anyone with information to call the provincial police criminal investigation branch at 1-888-310-1122, or their nearest police service.
Or leave an anonymous tip by calling Crime Stoppers at 1-800-222-8477.