New documents leaked by Edward Snowden reveal that despite a nonspying pact, the NSA has secretly stored personal electronic data of British citizens.

British officials agreed in 2007 that their citizens’ phone, Internet and e-mail records could be retained and analyzed by the National Security Agency, according to documents published Wednesday in The Guardian newspaper.

The information is the latest revelation from the former NSA contractor that appears to show US intelligence agencies spying on allies.

The deal comes despite the so-called “Five Eyes” accord among the United States, Britain, Australia, Canada and New Zealand.

Under the pact, citizens of each country were supposedly protected from surveillance by the others.

There was no immediate reaction from US or British authorities to the latest report.

US officials want to repatriate Snowden, who is currently in Russia on temporary asylum, so he can stand trial on charges of taking and leaking classified documents about surveillance programs.

British spy chiefs claim that his leaks had helped Britain’s enemies.

The leaks have caused anger around the world and have strained ties with US allies, including German Chancellor Angela Merkel.