Since President Obama decided not to support the rebels fighting Syrian dictator Bashar al-Assad, a handful of Saudi religious figures have taken matters into their own hands.

After the Syrian regime recently massacred over 100 civilians in Houla, a group of well-known Saudi clerics, launched an online campaign to raise funds for the Free Syrian Army. Saad al-Bureik, Salman al-Odah, and Muhammad al-Arefe—who have a combined 3 million followers on Twitter—called for Assad’s death, and are now urging their followers to donate to the cause.