Social media is playing a role in helping put people's minds at ease about the Paris attacks.
Facebook has a feature called "Safety Check" where people in Paris can check themselves as "safe" and a notification is sent out to all of their Facebook friends.
The feature was created after the deadly earthquake in Nepal in April and is only activated in times of crisis.
On Twitter, #PrayForParis is trending as well as #PorteOuverte, which means "open door."
Tweeting #PorteOuverte indicates that you are safe and are offering your home to anyone in need.
If you are not in Paris, you are urged not to tweet the hashtag, so as not to clog up the thread for those using it.