Israel eavesdropped on U.S. Secretary of State John Kerry over the course of the nine-month failed peace negotiations with the Palestinians last year, the German Der Spiegel reported on Sunday.
Neither the Israeli government nor Kerry's office has responded to the Der Spiegel report.
According to the report, Israel and at least one another secret service tapped into Kerry's phone calls with high-ranking officials during his efforts to mediate the peace talks.
Citing "several sources among secret services," Der Spiegel said that Kerry's conversations were held via normal telephones with satellite connections vulnerable to tapping, in addition to secure lines.
Kerry spent the better part of last year shuttling back and forth to the Middle East in an attempt to media between the two sides, to get the peace talks back on the table. The process collapsed in late April.
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