Parisians open their doors to strangers with hashtag #PorteOuverte

Facebook launched a check-in feature to let people know that friends in Paris were safe after a series of bombings and shootings in the French capital killed at least 120 people on Friday.

And in the wake of the attack, the people of Paris took their efforts to social media and expressed their concern in helping their fellow citizens through the hashtag #porteouverte.

Video has emerged of soccer fans singing the French national anthem as they evacuate the Stade de France, where two explosions occurred during a France-Germany match.

After the deadly attacks in Paris, people are being told to stay off the streets and out of public places like restaurants, concert halls and other large areas.

French-Algerian journalist Nabila Ramdani told the BBC people were being evacuated from buildings and told to go to secure locations but had limited means of doing so.

Several Metro lines have been closed in the city, leaving many unable to find transport. The hashtag symbolized U.S. homes offering a place to stay and hot meals due to airline cancellations or delays.

Locals offered their homes to frightened tourists and locals alike, with the hashtag quickly trending worldwide on Twitter. Additionally, taxi cabs were taking people home or to other places for free. “Of course the obvious problem they are facing at the moment is how to go back home”.

Facebook users who were in Paris during the Friday night terror attacks were able to notify friends and family that they were safe through the site’s “Safety Check” tool.