The Portland Police Department says one of eight people arrested last week, who originally was thought to have been a teenager, is an adult.

The 18-year-old was charged with refusing to submit to arrest.

Portland police arrested eight people near Kennedy Park after officers spent more than an hour dodging fireworks on the evening of July 5. The teen was originally listed as a juvenile. In a corrected statement Monday, Portland police said he is actually an adult.

Officers arrived on the scene at around 10:35 p.m. after receiving reports of a group setting off fireworks and hitting passing cars, according to a statement from Interim Police Chief Robert Martin. After members of the group began launching projectiles at officers, they “were forced to deploy pepper balls to prevent from being attacked.”

Three other adults, ages 21 to 18, were charged with misdemeanor-level crimes of obstructing government administration, failure to disperse and refusal to submit to arrest. And three boys ranging from 14 to 17 years old were also charged with refusing to submit to arrest.

The incident was at least the fourth straight year that police faced being attacked with fireworks in Kennedy Park around the Fourth of July.