CAIRO — Several thousand Egyptians have marched nearly seven kilometers (four miles) through Cairo to demand retribution for 26 Coptic Christians killed during an anti-government demonstration last year.

Muslim clerics, Christian priests, activists and former liberal lawmakers were among those marching to mark the anniversary of the "Maspero massacre," referring to the name of the state TV building, where the clashes broke out.

The Christian-led protest a year ago began peacefully but turned violent. Military vehicles ran over protesters and gunshots were fired.

On Tuesday, protesters held a mock Pharaonic funeral, waving Egyptian flags with the Muslim crescent and Christian cross in a show of unity.

People chanted slogans calling for the execution of Field Marshal Hussein Tantawi, the military ruler at the time, who led Egypt through a tumultuous 17-month transition.