US shared Brazil data with allies, companies: Rousseff

She added that US and its allies should immediately stop their spying activity once and for all

"Everything indicates" that the fruits of the US government's electronic spying in Brazil were shared with friendly governments and even with private companies, Brazilian President Dilma Rousseff said Monday.

"The United States and its allies must immediately stop their spying activity once and for all," she said on Twitter.

Her comments came a day after Brazil's Globo television reported that a Canadian intelligence unit joined the US National Security Agency in targeting the communications of the Brazilian Ministry of Energy and Mines.

The Globo report cited documents from whistle-blower Edward Snowden, who was also the source for the network's earlier stories about the NSA's spying on Rousseff and on Brazilian state oil company Petrobras.

Brazil's foreign ministry Monday summoned the Canadian ambassador in Brasilia to formally demand an explanation for the spying by the Communications Security Establishment Canada.

Rousseff announced Sep 17 that she was postponing a state visit to Washington set for this month pending a satisfactory US response to the revelations about NSA spying.