The vehicle apparently went out of control, struck a bridge pillar on the E40 highway, then shot off the road, Belgian highway authorities said. The bus was carrying around 40 passengers, including 34 British children from 11 to 13 years old, authorities said.
The Belgian federal prosecutor's office said all of the children survived the crash, but that an adult passenger, later identified as one of the two drivers on the bus, had been killed. The second driver was seriously injured. It wasn't immediately clear which of the drivers had been at the wheel at the time of the wreck.
"All of the children managed to walk off the coach," Ian Davies, the school's head teacher, told the BBC. "One of the children subsequently had a head injury. He had a scan and they found a small brain bleed as part of his fractured skull."
The broadcaster said the bus belonged to a company from County Antrim in Northern Ireland. Belgian media said it was transporting the children to Phantasialand, a theme park near Cologne, Germany.
"Sadly we can confirm that one British national has died following the bus crash in Belgium this morning," the British Foreign Office said in a statement. "A team from the British Embassy is on the ground alongside the Belgian local authorities and are working hard to support the people caught up in this terrible incident."
The E-40 highway, a major thoroughfare that links Belgium's North Sea coast to the capital city of Brussels, was closed to traffic following the crash.
