RCMP say a woman at the Craven Country Jamboree was taken to hospital overnight after being hit in the face by part of a firework.
According to Staff Sergeant Geoff Buxcey, the firework struck the woman's cheekbone just below her eye.
"The damage to the face and the eye is unknown at this point," said Buxcey.
The woman's age has not been released.
Buxcey said RCMP are investigating the incident and they expect to lay charges.
"Investigators will be meeting with her today at the hospital to find out the extent of the injuries and likely (there) will be charges for criminal negligence causing bodily harm."
Buxcey said fireworks are not allowed on site at the country music festival.
Despite the firework incident, police say crime was down at the festival this year.
"Normally there are a large number of arrests throughout the event, but just maybe the weather and the people cooperating with the event coordinators to remain in their campgrounds and drink responsibly — I think the message has gotten through to them," said Buxcey.
As of Sunday morning, there were 65 arrests since the festival kicked off Wednesday.
On Saturday night, 22 people were arrested for public intoxication. They spent the night in jail sobering up.
A sexual assault was also reported to police Friday night. Officers were still investigating the incident Sunday.
As for traffic, organizers say a larger number of people attending the festival this year added to the problem.
By Sunday, officers handed out a total of 228 traffic tickets to Craven-goers.
During the weekend, drivers were asked to stay off Russel Hill Road, a gravel road across from the site. It was too narrow to travel and some vehicles had to be towed.