Where is Cattrall's brother?

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Actress Kim Cattrall has taken to social media for help finding her brother, who police say is missing from his home in Lacombe, Alta.

RCMP say 55-year-old Christopher Cattrall has been missing since Tuesday.

In an Instagram post, Kim Cattrall says her brother's keys, cellphone and wallet were left on a table in the house, and his front door was unlocked.

She says his seven dogs were left alone.

Police describe Christopher Cattrall as being six-feet tall, 200 pounds with blue eyes and short brown hair.

They're asking anyone with information to come forward.