The Munich Police Department said earlier they had information of a terrorist attack planned in the city for New Year's Eve, urging people to avoid crowds, Sputnik reported.
Later, police evacuated two train stations in Munich over high possibility of the attack.
The German Die Welt newspaper quoted Herrmann as saying that the information was obtained from a friendly intelligence service and it was necessary to immediately step up the security measures in the city.
In late December, Austrian police stated that several European capitals received a warning from a "friendly intelligence service" about possible terrorist attacks during the holiday season.
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