One person was killed and several injured when a tourist boat carrying 29 people capsized in an underground cavern along the Erie Canal in upstate New York on Monday.

A 60-year-old man died after being trapped under an overturned flat-bottomed pontoon operated by Lockport Cave and Underground Boat Ride (CNN) report. Ambulance crews rescued 16 of the survivors, the rest were unaided and safely, according to the report. Eleven people suffered various injuries. (Related article: Red Sea tour boat fire kills 3 British divers)

Those affected were hospitality workers who were participating in an organized training tour. Destination Niagara United StatesIt was nearing the end of the tour, according to. Associated Press.

My team is in close contact with local officials and emergency operations teams in response to the boat capsize along the Erie Canal in Lockport.@nyspolice, @NYSDHSES, @NY State Parkand @HealthNYGov We are on site to assist local authorities in their response.

— Governor Kathy Hochul (@GovKathyHochul) June 12, 2023

Lockport Fire Chief Luca Qualiano said the boat could hold up to 40 people, CNN reported. The boat was made for navigating in well-lit caves, there were no dangerous spots on the route, and the tour was professionally conducted. NBC News Quoted from Quariano. But CNN said none of the passengers were wearing life jackets and it was unclear if they were required.

The survivors were “wet and upset,” Quariano said, according to NBC News.

Authorities are treating the area as a crime scene and the incident is under investigation, according to a CNN report.