SEATTLE (AP) — The latest on a crash between an amphibious tour vehicle and a charter bus in Seattle (all times local):

2:32 p.m.

The president of the company operating an amphibious tour vehicle that crashed with a charter bus is calling the deadly Seattle wreck “devastating.”

Brian Tracey of Ride the Ducks tells The Seattle Times (http://bit.ly/1VduJ6r ) that “all I care about is the safety of the passengers and the people who were injured on the duck.” He says the company continually trains and conducts ongoing education classes to ensure safety.

The crash Thursday killed four people and injured dozens of others, including 12 critically. It involved students and staff from North Seattle College‘s International Program.

Seattle police and fire officials didn’t immediately describe the chain of events leading to the crash. National Transportation Safety Board investigators are at the crash scene.

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2:10 p.m.

An SUV driver who was involved in a deadly crash on a Seattle bridge says a charter bus and amphibious tour vehicle were headed in opposite directions when they collided.

Twenty-three-year-old Brad Volm, of Philadelphia, says he was driving behind the duck boat, heading north on the Aurora Avenue bridge, when the amphibious vehicle swerved in front of him.

Volm says it appeared the duck boat’s front left tire locked up, and the vehicle swerved into the oncoming charter bus.

Seattle police and fire officials didn’t immediately describe the chain of events leading to the crash. But they say initial reports described it as a head-on collision.

The crash Thursday left four people dead and dozens injured.

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1:45 p.m.

Students and staff from North Seattle College’s International Program were involved in the deadly crash between a charter bus and an amphibious tour vehicle.

School spokeswoman Melissa Mixon said in a statement that the wreck that killed four people and injured dozens occurred at about 11:15 a.m. Thursday. She says the uninjured students and staff were taken back to campus, where counsellors were on hand.

Mayor Ed Murray says the foreign students were on the charter bus, and efforts were being made to contact consulates. He had no other details.

North Seattle College is a two-year institution with about 18,000 students. Mixon says it’s trying to determine more information.

The charter bus was from Bellair Charters and Airporter, based in Ferndale, Washington. A message left with the company’s president wasn’t immediately returned.

The other vehicle was an amphibious bus operated by a tour company called “Ride the Ducks.”

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1 p.m.

The Seattle fire chief says four people died at the scene of a crash involving a charter bus, an amphibious tour vehicle and two passenger cars.

Chief Harold Scoggins said at a news conference Thursday that 12 were critically injured, higher than previously reported. Many others received minor injuries.

Seattle Mayor Ed Murray says there were foreign students on the charter bus. Murray says efforts were being made to contact their consulates, but he had no other details.

Murray called the incident a “terrible tragedy.”

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12:47 p.m.

A witness says she was walking across a Seattle bridge just after a charter bus and an amphibious tour vehicle crashed and came upon a mess of jumbled metal and glass.

Jahna Dyer, a registered nurse, told The Associated Press on Thursday that some victims were sprawled out on the pavement while others milled about seemingly in shock and falling down.

Authorities say the crash killed two people and critically injured nine others. Dyer says she stabilized the neck of an injured man and helped a woman who had a cut lip and glass in her eye.

Another witness, John Mundell says he was at the south end of the bridge when he heard a screech and twisted metal and saw what appeared to be a few dozen people on the ground.

Mundell says wanted to help the injured but “felt helpless.”

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12:29 p.m.

Seattle fire officials say two people killed when a charter bus and an amphibious tour vehicle crashed were on the bus, as were most of the nine people critically injured.

Fire Department Lt. Sue Stangl says 12 people suffered minor injuries that would require hospital visits, and officials evaluated 30 other passengers on the vehicles who didn’t need further treatment.

Officials have not said what caused the crash Thursday.

The amphibious, military-style tour vehicles are operated by a tour company called Ride the Ducks and are known for exuberant drivers and tour guides who play loud music and quack through megaphones as they lead tourists around the city.

A man who answered the phone at the Ride the Ducks corporate office says the company had no immediate comment.

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12:10 p.m.

Seattle fire officials say two people have been killed and nine critically injured in a crash between a charter bus and an amphibious tour vehicle in Seattle.

The crash occurred on a bridge over Lake Union late Thursday morning. Harborview Medical Center spokeswoman Susan Gregg said the hospital expected to treat up to 10 of the most seriously injured victims, while as many as 15 others were being dispersed to other hospitals in the area.

The amphibious, military-style tour vehicles are operated by a tour company called “Ride the Ducks” and are known for exuberant drivers and tour guides who play loud music and quack through megaphones as they lead tourists around the city.