RCMP launch operation south of Montreal connected to White House ricin letter

The RCMP raided a residence on Montreal’s south shore Monday in connection with envelopes containing the poison ricin that were sent to the White House and to various locations in Texas.

The RCMP’s Chemical, Biological, Radiological, Nuclear, Explosives team is leading the operation with support from local police and firefighters.

Police say all necessary measures have been taken to ensure public safety. Some of the units in the building were evacuated after police arrived around 10 a.m

Canadian law enforcement was called in to help the FBI investigate after American authorities found evidence the suspicious letter had originated in Canada.

A woman suspected of sending the envelope was arrested yesterday at the Peace Bridge border crossing in Fort Erie along the border with New York.

She was taken into custody by U.S. Customs and Border Protection officers, and is expected to face federal charges.