Denver Public Schools board member Tay Anderson was taken to a hospital Wednesday after he was injured during a protest outside a homeless camp in downtown Denver.

Anderson said that Denver police pushed him to the ground. Videos taken at the scene and posted on social media show Anderson in the middle of a group that was challenging police outside the camp in Lincoln Park.

The protest began Wednesday morning after police and other city and state officials swept out a homeless encampment in the park, just west of the State Capitol. Videos show a crowd confronting police and later Anderson being pushed to the ground.

Denver Public Safety Director Murphy Robinson said he heard officers did not push Anderson.

“It appears that law enforcement was trying to close the gate and there was a bit of a scuffle and someone lost their footing,” said Denver Police spokesperson Christine Downs.

Downs said no police report has been filed and the incident remains under investigation.

However, when Anderson was interviewed moments after the confrontation, Anderson said police pushed him.

“This hurts,” Anderson said, clutching an ice pack to the back of his head.

“That was the police,” he added as he sat in the back seat of a car.