By Justin Sink - 07/07/14 01:43 PM EDT
The White House vowed Monday to work with German officials to resolve allegations that an intelligence officer worked as a double agent for the United States.
Germany's BND foreign intelligence agency last week arrested an intelligence services employee and accused him of selling documents to the United States. Chancellor Angela Merkel warned the charges, if true, could hurt her government's relationship with Washington.
The German intelligence worker was arrested last Wednesday after counterintelligence forces discovered an email in which he allegedly attempted to sell secret documents to Russia. After his arrest, German authorities said the man claimed he had sold intelligence documents to the United States for two years.