Footage courtesy of Youtube User Duckster1964br br Footage shows the start of large tornado sweeping through the state of Illinois, leaving a trail of destruction. Seven other US states have been put on alert for tornados and severe thunderstorms. Emergency services have been working to rescue people trapped or stranded due to the weather. br br COURTESY: RT's RUPTLY video agency, NO RE-UPLOAD, NO REUSE - FOR LICENSING, PLEASE, CONTACT br RT LIVE br Subscribe to RT! br Like us on Facebook Follow us on Twitter Follow us on Instagram Follow us on Google+ Listen to us on Soundcloud: br RT (Russia Today) is a global news network broadcasting from Moscow and Washington studios. RT is the first news channel to break the 1 billion YouTube views benchmark.