The U.S. saw the most violent mass shooting in our nation’s history this weekend — 50 killed, and more than 50 hospitalized in a mass shooting at a Latino event at a gay club in Orlando, Florida.

To the thousands of Change.org users in the Orlando area, our hearts are with you as you process such a senseless act of violence in your own backyard. To those who have friends and family in the area — including a number of our own staff at Change.org — we hope for healing and connection with your loved ones as soon as possible.

And to those around the country and globe who are deeply affected by this tragedy, we mourn with you and hope that very soon our communities can find solutions that put an end to terrible acts of violence like this.

Organizations in the area like the Central Florida Red Cross and Equality Florida are on the ground helping assist first responders and aid in the recovery. Visit their websites, follow them on social media (Equality Florida and Central Florida Red Cross), and even consider donating if you can to support their important work.

The city of Orlando has also established a hotline to check on missing family members and loved ones here: 407-246-4357.

We Are Orlando has information about vigils taking place all over the country.

In the coming days, we will learn more about this attack. Some of you may look to ways we can join together to express love or solidarity, and also ways we can work together to make change in Orlando, our country, and our world. We hope our platform can be of service.

All of us at Change.org stand in heartbroken solidarity and love with everyone affected by the Orlando shooting, and know that together we can make a better, safer, more hopeful world.

Shayna Englin is Change.org’s Managing Director of North America

People are rallying together to make change in the wake of the tragic events in Orlando. Here are some of the issues that they are supporting: