SAINT PAUL, Minn. (WCCO) – Preliminary tests of a white powder found on a letter sent to the Governor’s Mansion Monday afternoon showed no toxins or threats.

Earlier Monday, a hazardous materials team was called to the Governor’s Mansion after a staffer opened a letter covered in a small amount of white powder.

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Staff members called the State Patrol who then called in the St. Paul Fire Department.

Firefighters, wearing protective jumpsuits, were sent in to try and figure out what that powder was.

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“There wasn’t a threat stated in the letter that doesn’t necessarily mean a lot as far as what the substance may be. Obviously in today’s day and age we have to take every precaution,” State Patrol Lieutenant, Eric Roeske, said.

Gov. Mark Dayton was in the residence along Summit Avenue in St. Paul, but the letter was opened in a different part of the property.

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The preliminary tests were conducted the Minnesota Department of Health.