President Barack Obama apologised to German Chancellor Angela Merkel for US spies bugging her calls, German magazine Der Spiegel reported.
Merkel reportedly called the US leader last week to seek clarification over bugging reports and was assured by the President that she was not "currently" being monitored.
It has since been revealed that Merkel's calls may have been monitored by the US since 2002.
More top news
Two ambulances crashed leaving one driver dead and three people seriously injured.
A scandal-hit NHS trust where a teenager drowned in the bath is still failing to protect patients from risk of harm, a watchdog has found.
New research suggests metal-on-metal hip replacements implanted since 2006 are more prone to failure and they "fail in a much nastier way".