A charter bus flipped on its side on Interstate 95 in Connecticut Monday, leaving about 30 people injured, including six critically, reports AP. The state Department of Transportation says the accident happened about 12:30pm Monday in Madison during a snowstorm. NBC News reports that the bus was en route from New York to the Mohegan Sun Casino in Connecticut, and that other buses in the group were sent back to New York. Exactly what happened is unclear, but the bus could be seen on its side off the right shoulder of the highway surrounded by emergency vehicles. Police say about 70 passengers were on the Dahlia charter bus, and Yale-New Haven Hospital was told to expect 30 patients, six of whom were critically inured. (More bus accident stories.)