at this point, no word on a cause of the crash. >> as you can see a charter bus collided with one of these duck tour buses on the bus, 45 students and employees from north seattle college, confirming that they did have several dozen students and employees. we do not know who of the employees are injured or anything like that. again, taken to area hospitals. no word on a cause. the bridge is going to be shut down for many hours. amphibious tour vehicles have been involved in a few other crashes over the past year or so. this is something that will be looks at over at last 24 hours. these types of vehicles used, popular in seattle, washington, d.c., new york city has a number as well. amphibious vehicles used to take