PORT SAID, Egypt – Violent protests erupted outside Egypt’s capital Saturday as activists accused police of using excessive force in two cities and running over protesters, including one who was crushed to death by an armored vehicle.

The violence in the Nile Delta city of Mansoura and the Suez Canal city of Port Said came as U.S. Secretary of State John Kerry was in Cairo meeting with opposition figures.

Some liberals and seculars are angry that Washington is urging them to take part in next month’s parliamentary elections and see U.S. support for the vote as backing for President Mohammed Morsi and his Muslim Brotherhood party. The U.S. Embassy invited 11 opposition figures to meet with Kerry, but five declined.