More than 25,000 people rallied Sunday in the largest protest in Pakistan so far against an anti-Koran film made by a Dutch lawmaker, urging their government to expel the Netherlands ambassador.

"They call this freedom of expression, but it's freedom of aggression," keynote speaker Munawwar Hasan, a leader of the main Islamic party Jamat-e-Islami, told the crowd as it chanted "God is great."

The 15-minute film by Geert Wilders, which sets verses from the Muslim holy book against a background of violent images from terror attacks, was released in March.