Severe weather strikes Mexico

March 20, 2008 11:49:19 AM PDT
Severe weather caused dramatic scenes in northern Mexico Powerful winds knocked a billboard down onto a passing bus in Monterrey.

6 passengers were injured in the incident.

Meantime, a construction worker was killed when a wall collapsed on top of him.

The winds also knocked out power to part of the city, and whipped up large dust clouds.