Mexico 'monster truck' crash kills six at air show
At least one child was said to be among the dead.
The monster truck - with tyres said to be 1.5 metres (nearly 5ft) high - was reported to have ploughed into a stand.
The vehicle was taking part in a demonstration at an annual air show attended by thousands in the northern city of Chihuahua on Saturday evening.
The monster truck was performing a demolition stunt which involved crushing smaller vehicles beneath its huge tyres.
A spokesman for the Chihuahua state prosecutors' office said the driver appeared to have lost control of the truck after leaping an obstacle, AP news agency reported.
Carlos Gonzalez said prosecutors were looking at the possibility that mechanical failure meant the driver was unable to disengage the accelerator.
Policeman surveys destruction at the scene in El Rejon park
Source: BBC NEWS