Prime Minister Recep Tayyip Erdogan is to convene his party leadership as protests enter their ninth day. Erdogan, who has said the protests must end immediately, was to meet with top officials from his Justice and Development Party in Istanbul Saturday, according to a report of the Associated Press. The protests began as a sit-in at a park in Taksim Square to prevent a redevelopment project that would replace the park with replica Ottoman barracks and other buildings.