Berlin (CNN) The personal data and documents of hundreds of politicians and public figures in Germany have been exposed online, a government spokeswoman said Friday.

Martina Fietz told reporters that German lawmakers at all levels, including from the European parliament, German parliament, and local politicians, had been impacted.

The data included credit card details, phone numbers and email addresses, one political party told CNN.

Several German media outlets reported that German Chancellor Angela Merkel was affected by the breach, but Fietz said no sensitive information from Merkel's office had been published.

"The federal government takes these incidents very seriously," Fietz told a news conference Friday. "The authorities are working flat out to determine the extent and background of the incident and to provide assistance to those affected."

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