NEW : Muslim Brotherhood offers support for the protesters . Comment: The announcement came late in a day during which Syrian tanks and security forces swooped down hard on the restive city of Daraa , witnesses said . Daraa is the scene of tanks , helicopters , and mass arrests , witnesses say . Residents are afraid to go out to collect the dead , a witness says .
NEW : Muslim Brotherhood offers support for the protesters . Comment: Daraa is the scene of tanks , helicopters , and mass arrests , witnesses say . Residents are afraid to go out to collect the dead , a witness says .