Police say 12-year-old, 43-year-old, both from the U.S., seriously hurt, highway reopenedTwo Americans, including a child, were critically hurt after a pair of crashes Tuesday evening shut down westbound Hwy. REGISTER / SIGN IN TO UNLOCK MORE ARTICLESSubscribe now to read the latest news in your city and across Canada. Try refreshing your browser, orWe apologize, but this video has failed to load. Child, adult critical after crash shuts down westbound 403; groups clash in Richmond HillTry refreshing your browser, orWe apologize, but this video has failed to load. Try refreshing your browser, or Play Video2 people hurt as groups clash in Richmond HillA “dispute” at a Richmond Hill parking lot has left two people injured and two others in police custody.