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VANCOUVER, Wash. -- The driver of a large truck was stopped and detained by police after accelerating twice past a group of counter-protesters in Vancouver on Sunday afternoon.

The driver was not charged with a crime and has been released, Vancouver Police said.

The incident occurred following a rally by members of the conservative group Patriot Prayer. Counter-protesters followed the group to the rally along the waterfront in Vancouver.

After the rally ended, Vancouver police had the members of Patriot Prayer leave eight at a time while shielding them from counter-protesters.

RELATED: Seven arrests made during rallies in downtown Portland

Counter-protesters started following the Patriot Prayer demonstrators through Vancouver, throwing objects at the conservative demonstrators and their cars.

At some point, someone in a large black truck drove aggressively near where counter-protesters had gathered. The truck was almost immediately stopped by police.

Watch the incident unfold in this video, starting at around the 3:55 mark. You can see what appears to be the same truck at the beginning of the video speeding backwards to avoid counter-protesters.

Witnesses say the driver went around the block to confront the group of protesters again before police detained him.

Police arrested two people for actions at the rally and counter-protest. Alanna Partin was arrested for Disorderly Conduct and Resisting Arrest. Shawna L. Gonzalez was arrested for Reckless Endangerment.

Gonzalez was allegedly seen throwing chunks of wood into a crowd of people, police said.

Some demonstrators told KGW's Maggie Vespa that men in a second truck sprayed pepper spray as they sped by the group of counter-protesters at a close distance.