In Germany, security remains tight ahead of the federal elections. On Saturday, police were seen patrolling the airports and train stations.
Security had already been stepped up after the first threats from Islamic militants two weeks ago.
On Friday another two videos surfaced, one by al-Qaida and another by the Taliban, threatening retaliation for Germany's military presence in Afghanistan.
The Taliban video showed top German landmarks like the Brandenburg Gate in Berlin and Munich's world-renowned Oktoberfest as potential targets.
In response, authorities have banned all flights over Oktoberfest until the 4th of October.