At least 15 people were injured after a driver plowed a car into a crowd during a parade in Louisiana on Saturday, April 4, according to authorities and multiple reports.

The Iberia Parish Sheriff's Office said in a Facebook post that deputies are investigating an incident involving a vehicle that struck pedestrians during a parade in New Iberia, a small Cajun town in southern Louisiana, about 30 minutes from Lafayette. As a result, "several individuals sustained injuries, some of which are believed to be serious," the sheriff's office added.

Louisiana State Police said they arrested the driver, a 57-year-old man, and charged him with driving while impaired, 18 counts of first-degree negligent injuring and careless operation, Reuters reported. Police said he is also accused of having an open container with an alcoholic beverage in the vehicle.

The festival typically occurs on Easter weekend and celebrates the Lao New Year, according to the organizers' Facebook page.

"We are profoundly saddened by the news of the incident near the festival grounds," the organizers' post reads. "We are awaiting additional details from authorities as they become available. All security resources have been redirected to the scene, and we currently do not have security personnel available due to the circumstances."