The fire that badly damaged New Hampshire's historic Kimball Castle is being considered suspicious, police said Wednesday.

Gilford police are continuing to investigate the blaze alongside the New Hampshire Fire Marshal's Office, Det. Sgt. Adam Batstone told NBC10 Boston.

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"This fire is considered suspicious until information or leads deem it otherwise. This is an open and active investigation at this time, and we are still looking for any information the public may have about this situation," Batstone said in an email.

Kimball Castle, located on a hill overlooking Lake Winnipesaukee, was built in the late 1890s by railroad magnate Benjamin Ames Kimball to serve as his summer estate. It was listed on the National

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