Does the engine crank at a much higher speed than normal yet fail to start? If yes the timing belt is broken.

But even if it cranks normal I would still check it. It might have jumped a cog or two but not break. Remove the screws from the upper timing belt cover and carefully pry it back and check to see if the belt is OK.

1998 Sportage - Gone.
2004 Honda Civic Coupe.
2007 Suzuki Grand Vitara - She got it.