An unfinished motorway flyover has collapsed in the Brazilian World Cup host city of Belo Horizonte, leaving at least two dead and many injured.
The bridge, which was supposed to be built in time for the tournament, collapsed onto a bus and other vehicles beneath.
Alexandra Pereira, a teacher who was in an apartment building just 20 yards from the overpass, said it sounded like an "earthquake or bomb".
"I looked out my window and panicked," she said.
"I couldn't see anything but a huge cloud of dust."
The accident happened in the north of the city, where teams have been based throughout their World Cup campaigns.
Belo Horizonte's nearby Mineirao Stadium has hosted four World Cup matches and is due to host a semi-final next Tuesday.
Fire services sent more than a dozen engines and a helicopter to the scene to aid those trapped in the wreckage.
A fire department spokesman told the AFP news agency that scaffolding was being taken down at the time of the collapse and the flyover was in the final stages of construction.
Live TV images showed what appeared to be a school bus and other vehicles trapped under the rubble.
The female driver of the bus was killed, with 13 people rescued from the vehicle.
Two trucks belonging to the construction company and one car were crushed along with the bus.
City firefighters said on their official Twitter account that at least one person was dead but other sources said the death toll was two, with at least 22 injured.
Officials say they do not expect the casualty toll to rise too sharply, although they have not yet reached a small car that was flattened.
It is not known if anyone inside the car escaped or remained inside.
It is not yet known why the flyover collapsed. Cowan, the construction company responsible for building it, said investigators are on site.
Groups of people gathered near the scene of the accident, with some of them shouting.
Bank worker Leandro Brito said: "Because of the World Cup they sped everything up to finish faster.
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