Most passengers and crew escaped with only scrapes and bruises, climbing out of the crumpled plane, which came to rest in a ditch. At least 60 of the passengers and four crew were treated for minor injuries at hospitals in Reynosa, just across the border from McAllen, Texas, Red Cross officials said...

...It wasn't immediately clear what caused the accident. An AeroMexico spokeswoman said the pilot put on the brakes but the plane didn't stop.

Airport manager Silverio Ruiz told the government news agency Notimex that the braking system had failed. Later, he told Notimex that the airport's short runway could have contributed to the crash, saying it is the shortest in the country. It was also soaked from heavy rains from tropical depression Keith.
http://news.airwise.com/stories/2000/10/970910957.html