Several people were injured when a vehicle struck revelers at a parade celebrating the Lao New Year on Saturday in rural Louisiana, authorities said.

Video shared on social media showed multiple people on the ground at the annual event in Broussard and New Iberia. The videos showed firefighters tending to one person trapped beneath the car, which wound up in a ditch along the parade route.

Around 15 people were hurt, some seriously, according to the Iberia Parish Sheriff’s Office. The driver was in police custody.

“Based on the preliminary investigation, this does not appear to be an intentional act,” said a spokesperson for the sheriff's office, Rebecca Melancon.

Acadian Ambulance, a private ambulance company, said on social media that it responded to the emergency around 2:30 p.m. and sent 10 ambulances and a helicopter to aid the injured. Two patients were airlifted, it said.

Organizers of the Louisiana Lao New Year Festival issued a statement Saturday night on Facebook. “We are profoundly saddened by the news of the incident near the festival grounds,” the statement said. “We are awaiting additional details from authorities as they become available. ... We are praying for the victims and for their families during this difficult time.”

If security is restored, the festival will hold religious services on Sunday, the organizers said.

The parade is part of a three-day New Year celebration set in the Lanxang Village, a Laotian neighborhood near New Iberia with hundreds of families, and near the Buddhist temple grounds of Wat Thammarattanaram. It features Southeast Asian food, live music, a parade and other family-friendly activities attracting thousands each year.

Louisiana Gov. Jeff Landry issued a statement about the incident. “Sharon and I are praying for all those affected, and are grateful for the first responders who have responded to the scene,” he said.