BOB ABERNETHY, anchor: Faith-based groups are ratcheting up calls for international action on the worsening humanitarian crisis in the Darfur region of Sudan. This weekend (April 30) -- a mass rally in Washington, DC.

On Tuesday (April 25), the UN Security Council approved its first sanctions against four Sudanese leaders involved in the Darfur conflict. Religious activists say not enough is being done to stop the violence that has left more than 200,000 dead and millions homeless.

A broad coalition of Christians, Jews, and Muslims has been mobilizing to raise public awareness. Rabbi David Saperstein, director of the Religious Action Center of Reform Judaism in Washington.

Rabbi DAVID SAPERSTEIN (Director, Religious Action Center of Reform Judaism): There is an enormously wide consensus in the faith community that the mandate of Leviticus 19, "You shall not stand idly by the blood of your neighbor," requires the faith community to act. We can't stand idly by while hundreds of people are dying or being killed. We can't stand by while thousands of women are being raped as a tool of war.