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An arsonist targeted a San Francisco home used in the comedy blockbuster "Mrs. Doubtfire," police said early Tuesday. Officials launched an investigation after the iconic Pacific Heights residence had its doormat set ablaze at 8 p.m. local time (11 p.m. ET) on Monday night, a San Francisco Police official told NBC News. The home was used in the filming of the 1993 movie starring actor Robin Williams, who took his own life in August last year.

The home is now owned by a doctor who has been a pioneer in facial feminization surgeries. However, a police department official said the incident did not appear to be a hate crime.

Image: "Mrs. Doubtfire" house
The Pacific Heights home used in the filming of the movie "Mrs. Doubtfire" served as a makeshift memorial site following the death of Robin Williams.Eric Risberg / AP