European countries have beefed up security following Friday’s multiple attacks in Paris that killed more than 120 people and drew strong condemnations from the international community.

About seven well-coordinated shootings and bombings rocked central Paris Friday night, one of which turned into a hostage taking at the Bataclan theater and concert hall where hundreds of people were attending a rock concert.

French President Francois Hollande on Saturday chaired an emergency defense council, the second in few hours after an apparently coordinated attacks and bombing rocked the French capital Friday night.

Calling the attacks "an act of war that was prepared, organized, planned from abroad with internal help", Hollande, together with Prime Minister Manuel Valls and several ministers, including Interior Minister Bernard Caseneuve, Defense Minister Jean-Yves Le Drian, in addition to army chiefs pledged to dig for adequate security measure to ensure the safety of the eurozone’s second leading power.

French anti-terror police are working to find out potential accomplices to the attackers as the French authorities claimed that they couldn’t rule out the possibility that other militants involved in the attack remained at large.

Meanwhile, several European countries have decided to upgrade their terror preparedness following the Paris attacks.

Italian government has raised alert level to two, meaning that special military forces are ready to immediately intervene at need.

The Hungarian government’s national security committee held a special meeting on Saturday attended by the prime minister, and ordered heightened security including an increased police presence in public places and at important facilities such as the airports and the Paks nuclear power plant.

Dutch cabinet increased alertness of all its related security services and intensified border surveillance.

Slovak authority has introduced several security measures since Friday midnight after the Paris attacks.

According to Slovak Prime Minister Robert Fico, the country have increased monitoring of Slovakia’s border with Ukraine and Hungary and in asylum seeker reception centres in Eastern Slovakia and in Gabcikovo in Western Slovakia.

Nordic country Finland Saturday announced that it is raising its own degree of terrorism preparedness as well, according to the statement made by Finnish Minister of Interior Orpo.

Lithuanian leaders expressed on Saturday the need to strengthen security by the European Union’s external borders, the country has also taken additional security measures.

Due to the terrorist attacks in Paris on Friday night, Spain is considering to raise the country’s terror alert. The Spanish Ministry of Interior is asking for assessment of the risk of terror, which in Spain is currently at 4 level on a scale of one to five levels.