CAIRO — Ten of thousands of supporters of Egypt's ousted president are marching in the streets of Cairo and across the country demanding his reinstatement.

The protesters waved signs Friday bearing the picture of President Mohammed Morsi, who was deposed in a July 3 military coup that came after millions marched in the streets against him.

While most were peaceful, clashes erupted in at least three locations in the country between Morsi supporters and those opposing Morsi, as well as security forces. In one clash in Fayoum, south of Cairo, Egypt's official news agency MENA said dozens were injured in clashes between protests and security forces that saw tear gas used.

Egypt's military-backed interim government has said it plans to break up two sit-in protests by Morsi supporters.