The Islamic state has claimed responsibility for coordinated attacks in Paris that have claimed the lives of more than 120 people. The attacks Friday night took place in several locations, including a concert hall, where dozens of people were held hostage and killed by suicide bombers, who detonated their vests as French authorities closed in.
While the world grieves with France, many are asking why the attacks happened in the first place, and what can be done to prevent them. The Pentagon announced that on Friday it conducted an unrelated strike in Libya that may have killed a leader of ISIS.
Here are one sentence summaries and links to several news posts about the attack in Paris and the aftermath:
Things to know - As developments pour in, here are 6 things to know now about the terror attack in Paris.
American casualty - California college student Nohemi Gonzales, 23, was killed in the attack.
Muslims outraged - The Muslim community in the U.S. condemned the violence in Paris.
Imagine - A German-Italian pianist dragged his piano close to the concert hall where more than 100 people were killed and played John Lennon's "Imagine" for the people gathered there.
Timeline - See a timeline of events as the terror attack in Paris unfolded.
World mourns - The rest of the world stands in solidarity with France the day after the attacks, in photos.
#Pray for Paris - As often happens, people turned to Twitter and social media to express their grief.
>> Special Section: Paris terror attacks
>> PHOTOS: Deadly violence rocks Paris
Where did this happen - More about the locations where the attacks occurred.
ISIS says they did it - The Islamic state says it chose Paris because it is "the capital of adultery and vice."
Phone saved his life - A Paris man says his phone stopped shrapnel from one of the bombs from killing him.
Survivor story - A woman was celebrating a birthday when attackers opened fire from a moving car.
Close call - An American blues artist is touring Europe and was just days away from playing the venue that was attacked.
#PorteOuverte - Parisians began offering their homes to anyone who needed shelter Friday night.
Gingrich tweets - Former Presidential candidate Newt Gingrich upset people by claiming in a tweet that more guns could have prevented the Paris tragedy.
Marchon - French soccer fans peacefully evacuated the French stadium, and sang the French national anthem as they did so.
GOP candidates react - Republican presidential hopefuls gathered in Orlando for a debate Saturday night responded to the attacks.
Eagles of Death Metal survived - The members of the American rock band escaped the attack just as gunmen entered the concert hall and began firing.
Facebook check-in - In another win for social media, Facebook created a safety check-in, allowing people in Paris to let their loved ones know they were OK.
Shock and sadness - Celebrities and politicians shared their grief and outrage about the attack.
Bombs go off - The bombs are audible in this video of Germany and France playing a friendly soccer match.
