![U.S. Authorities Tipped Off Canada to Security Threat](https://eng-archive.aawsat.com/wp-content/uploads/2016/08/20160811T185541-1470930940804702800.jpg)
Media ID: 55356262
Caption:
Caption:
Royal Canadian Mounted Police (RCMP) block the entrance to Park Street as they investigate the residence of Aaron Driver, a Canadian man killed by police on Wednesday who had indicated he planned to carry out an imminent rush-hour attack on a major Canadian city, in Strathroy, Ontario, Canada, August 11, 2016. REUTERS/Robert MacMillan
![U.S. Authorities Tipped Off Canada to Security Threat](https://eng-archive.aawsat.com/wp-content/uploads/2016/08/20160811T185541-1470930940804702800.jpg)