Germany is relying on a heightened police presence at all of its major railway stations and airports in the hope it will dissuade possible terrorist attacks.
It follows several intelligence reports which show Islamist militants plan to strike the country at the end of the month.
Other behind the scenes measures have also been enforced as the country was put on high alert.
Matthias Seeger, President of the German Federal Police told reporters:
“There is no reason for panic or hysteria, but we ask people to report unusual behaviour to the federal police and to indicate objects like suitcases, bags etc which stand around.”
Germany received the tip-off from a foreign intelligence service about being a possible target.
Despite having nearly 5,000 military personnel stationed in Afghanistan it has so far been largely spared attacks by Islamic militants.