A host of organizations have stepped up to help following the mass shooting on Sunday morning, in which a gunman killed 49 people and injured 53 others at an influential gay nightclub in Orlando, Florida. Police fatally shot the suspect.

Local and national organizations have mobilized to support the victims and their families following the tragedy, which President Obama called an act of terror and an act of hate.

We will not give in to fear or turn against each other, President Obama said , as he publicly addressed the nation Sunday. Instead, we will stand united as Americans.

As officials piece together the facts and the LGBTQ community -- along with the entire nation -- mourns those lost, heres how you can help:

Support Victims And Their Families