BRANSON, Mo. -- Seventeen people were killed when a duck boat packed with tourists capsized and sank in high winds on a Missouri lake overnight, Stone County Sheriff Doug Rader announced on social media Friday.
The driver of the Ride the Ducks boat died but the captain survived when the boat sank Thursday night in Table Rock Lake in the Branson area, Rader said earlier at a press conference.
Authorities blamed stormy weather for the accident. Winds at the time were blowing as hard as 65 mph, according to the National Weather Service.
Fourteen people survived, including seven who were injured when the boat went down, state police said.
, the president of Ripley Entertainment, which owns the duck boat tour company involved in the incident, told "CBS This Morning" on Friday the boat "shouldn't have been in the water."
"I don't have all the details, but to answer your question, no, it shouldn't have been in the water if, if what happened, happened," he said when asked why the tour continued in such rough conditions.
Duck boats, named for their ability to travel on land and in water, have been involved in other deadly incidents in the past.
Five college students were killed in 2015 in Seattle when a duck boat collided with a bus, and 13 people died in 1999 when a boat sank near Hot Springs, Arkansas.
Safety advocates have sought improvements and complained that too many agencies regulate the boats with varying safety requirements.
The boats were originally designed for the military, specifically to transport troops and supplies in World War II. They were later modified for use as sightseeing vehicles.
Passengers on a nearby boat described the chaos as the winds picked up and the water turned rough.
"Debris was flying everywhere," Allison Lester said in an interview Friday with ABC's "Good Morning America."
Lester's boyfriend, Trent Behr, said they saw a woman in the water and helped to pull her into the boat. He said he was about to start CPR when an EMT arrived and took over.
A spokeswoman for Cox Medical Center Branson said four adults and three children arrived at the hospital shortly after the accident. Two adults were in critical condition, and the others were treated for minor injuries, Brandei Clifton said.
Rader said an off-duty deputy working security for the boat company helped rescue people after the boat turned over. Dive teams from several law enforcement agencies assisted in the effort.
Suzanne Smagala with Ripley Entertainment, which owns Ride the Ducks in Branson, said the company was assisting authorities. She said this was the ride's only accident in more than 40 years of operation.
In the hours after the accident, the lake was calm. But another round of thunderstorms passed within 10 miles of the area Friday morning, and more storms were forecast for later in the day, some severe, weather service meteorologist Jason Schaumann warned.
Weather can change rapidly in this part of the country, moving from sunshine and calm to dangerous storms within minutes, Schaumann said.
A severe thunderstorm warning had been issued for Branson at 6:32 p.m. Thursday, before the boat tipped over.
"Tornado warnings get a lot of publicity, and severe thunderstorm warnings should be taken very seriously too, particularly if you are in a vulnerable area like a lake or campground," he said.
Investigators from the National Transportation Safety Board were expected to arrive on the scene later Friday morning.
President Trump expressed his condolences on Twitter.
"My deepest sympathies to the families and friends of those involved in the terrible boat accident which just took place in Missouri," the president said. "Such a tragedy, such a great loss. May God be with you all!"
Branson, about 200 miles southeast of Kansas City, is a popular vacation spot, offering entertainment ranging from theme parks to live music.
© 2018 CBS Interactive Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.
for more features.