France is reeling from a wave of horrific terrorist attacks in central Paris late Friday night, killing at least 127 people, critically wounding at least 99 and injuring hundreds more in multiple parts of the city.

French President François Hollande closed the country's borders, and announced that 1,500 members of the military would flood the streets of Paris for added security. At least eight attackers have been killed; Paris police told the Associated Press that all attackers are believed dead. The Islamic State has claimed responsibility for the attacks.

People around the world continue to mourn, channel their anger and show support for France through social media.

There are also tangible ways the international community can help.

Below, we've listed various ways you can provide support and resources for the victims in Paris, from donating to local charitable organizations to finding blood donation sites to checking in with friends and family.

We'll update this post as more options become available.

1. Support local organizations on the ground

These organizations have either announced direct relief efforts or have an active presence in Paris.

Les équipes de la Croix-Rouge française ont été mobilisées cette nuit. Près de 300 volontaires sont intervenus en... Posted by Croix-Rouge française on Saturday, November 14, 2015

The French Red Cross posted on its Facebook page Friday night and Saturday morning that it has mobilized 300 volunteers to bring relief to victims.

You can donate directly here (French) and here (English).

Many people have been tweeting out links to the International Federation of the Red Cross and Red Crescent Societies, but please note that means your donation will support the IFRC's overall emergency aid efforts around the world, and does not necessarily mean your money will go directly to helping victims of the Paris attacks.

This NGO fights against poverty and exclusion in France and throughout the world. Julien Lauprêtre, president of the organization, called for solidarity in an official statement, saying that in the aftermath of these events, great "gestures of humanity" are required.

You can donate to Secours populaire française here. You can also contact the organization here to volunteer time and skills.

2. If you're local, donate blood

#fusillade #FusilladeParis Appel à la générosité faites un #dondusang, partout en France coordonnées sur https://t.co/eCn03Q2xdm — Don du Sang Paris (@DonSangParis) November 14, 2015

Most organizations are currently urging citizens to donate blood.

If you live in nearby areas, you can find a blood donation center through the French National Blood Service here or through the Don du Sang à Paris app here.

Long line of people queuing to give blood at hospital opposite Le Petit Cambodge restaurant. https://t.co/b1RTHsRTB3 — Tim Chester (@timchester) November 14, 2015

One Twitter user, below, reported Saturday morning that the French Blood Service is overwhelmed, and that donating blood next week would be helpful as well.

Ils sont débordés à l'EFS là et disent que donner son sang la semaine prochaine, c'est bien aussi. Il faut étaler. — hommemystere (@hommemystere) November 14, 2015

3. Check in with friends and family

Facebook enabled its Safety Check feature Friday night, which it normally launches during widespread disasters, allowing users to see if any friends or family are in Paris. Those in the city can also mark themselves safe.

You can do so here.

Really appreciating the Safety Check feature on Facebook right now. #techforgood pic.twitter.com/Fq0FROTB1r — Khadijah James (@thenoirmonalisa) November 14, 2015

The French Ministry of the Interior also launched a website to take evidence and report missing persons here.

If you're a U.S. citizen in Paris, you can sign up for the latest security updates through the Smart Traveler Enrollment Program here, or call embassies at the numbers below:

An expanded list of numbers for embassies in Paris - please spread this far and wide. #PorteOuverte pic.twitter.com/7Q30DJDgH3 — George Aylett (@GeorgeAylett) November 13, 2015

4. Housing and shelter efforts

In an extraordinary show of solidarity, many Parisians began using the hashtag #PorteOuverte, which means "open door," to offer their homes as shelter to those who needed a safe place to sleep late Friday night and early Saturday morning — especially those who were not able to return to their homes due to disrupted subway lines.

Since then, the hashtag has spread around the world, with many in other countries using it to offer places to stay if French people are stranded due to increased plane delays. Americans have also begun using the hashtag #StrandedInUS to help.

If you're in Paris in need of emergency accommodation, our hosts have opened their doors https://t.co/E3TUbqD8m2 — Airbnb (@Airbnb) November 14, 2015

Apartment-sharing company Airbnb, which canceled its Airbnb Open conference in Paris on Saturday, activated a disaster relief tool to help visitors and hosts in Paris. The tool allows hosts to easily offer their spaces for free and connect with those in need. All Airbnb service fees are also waived for those affected until Nov. 17.

Access the tool here, and click either "I need a place to stay" or "I can offer my space for free."

UPDATED Nov. 14, 7:30 p.m. ET to add details to "Housing and shelter efforts."

UPDATED Nov. 16, 3:10 p.m. ET: We have removed Médecins Sans Frontières (MSF, or Doctors Without Borders) from the list of organizations, as it has confirmed it is not running medical programs for survivors of the Nov. 13 attacks, and cannot accept related donations.



Additional reporting by Katie Dupere.



