Ottawa Police Briefly Closed all Buildings After Receiving Threat

Police in the Canadian capital Ottawa briefly closed all of their buildings to the public on Tuesday after receiving a threat but they declined to give more details.
A spokesman for the Ottawa police service said the threat had been made against an unspecified building and added that an investigation was under way.
Last October a man shot dead a soldier in the centre of Ottawa and then stormed into Parliament, where he died in a gunfight with police and security staff.