In the continued exposure of the US' alleged spy ops, the latest claim emerging out of the secret revelations is that Canada let the National Security Agency conduct widespread surveillance during the 2010 Group of 20 summit in Toronto.
The trove of secret data revealed by whistleblower Edward Snowden has pointed that the alleged surveillance operation was 'closely co-ordinated with Canadian partner'.
According to the Guardian, the report by the Canadian Broadcasting Corp (CBC) is the latest potential embarrassment for the NSA as a result of Snowden's revelations, although it remains unclear precisely what information the agency was looking for during the summit.
The CBC report has been partly written by former Guardian journalist Glenn Greenwald, and stated that the US turned its Ottawa embassy into a security command post during a six-day spying operation by the NSA as President Barack Obama and other world leaders met that June.
The report did not reveal the exact targets being watched, but described part of the US eavesdropping agency's mandate at the Toronto summit as 'providing support to policymakers'.
The fresh claims come amidst the recently disclosed US snoop-ops on close allies such as Germany and Brazil, upsetting the bilateral ties.