CAIRO (AP) -- Egypt has increased security at a key courthouse ahead of planned mass rallies by supporters of the country's ousted president.
Armored vehicles and troops were deployed early Sunday to the Supreme Constitutional Court building in southern Cairo.
Under the banner of an anti-coup alliance, the Muslim Brotherhood said it will hold a demonstration in front of the building later Sunday. Rallies also are planned across the country by supporters of ousted President Mohammed Morsi.
More than 800 people have been killed nationwide since Wednesday's dismantling of two encampments of Morsi supporters in Cairo -- an act that sparked fierce clashes.
Meanwhile, the Egyptian government has begun deliberations on whether to ban the Brotherhood, a long-outlawed organization that swept to power in the country's first democratic elections a year ago.