The U.S. surveillance agency NSA collected data on 122 international leaders in a single month, the German news magazine Der Spiegel reported on Saturday, quoting from a document in the trove taken by whistleblower Edward Snowden.
The names of the top-level targets in May 2009 were apparently arranged alphabetically by first name, from Angela Merkel, the chancellor of Germany, to Yulia Tymoshenko, the Ukrainian prime minister at the time.
Spiegel said the document showed more than 300 items collected on Merkel. Last year it was alleged and not disputed by Washington that that NSA, or the National Security Agency, monitored Merkel's mobile phone.
The magazine said only 12 names were on the document it saw. Others included Abdullah Badawi, who had just resigned as Malaysian prime minister.
Earlier this month, German lawmakers agreed to launch an inquiry into surveillance conducted by the NSA and other foreign intelligence services, including the tapping of Merkel's cellphone which was revealed in 2013.
German federal prosecutors are also mulling whether to open their own investigation into NSA activities.
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