A monster truck has crashed into a grandstand after its brakes failed during a stunt show in northern Mexico, killing six people and injuring 47 others, officials say.
Two minors were among the fatalities at the Extreme Airshow in the city of Chihuahua, capital of the eponymous state bordering the US state of Texas, said municipality spokesman Jose Luis Dominguez.
Some 3500 people attended the demolition show, in which pick-up trucks with giant tyres crush smaller cars, when the vehicle lost control and smashed into the stands at around 7pm local time on Saturday, Dominguez said.
At least 35 of the 47 injured people were taken to hospitals. The park El Rejon, where the show took place, was immediately closed and helicopters and ambulances were dispatched.
It was the third annual airshow, which attracts 200,000 people on average and includes aeroplane stunts, skydiving and motorcycle acrobatics among other daredevil acts.
