Authorities in New Haven, Connecticut, said at least 41 people have overdosed today in or near New Haven Green, a park close to Yale University, and more calls could come in before the day is over. Police suspect they overdosed on synthetic marijuana. Rick Fontana, New Haven's director of emergency operations, told CBS News the calls started coming in after 8 a.m., with people showing "a multitude of signs and symptoms ranging from vomiting, hallucinating, high blood pressure, shallow breathing, semi-conscious and unconscious states." The victims were of "all different ages," and for some, anti-overdose drugs did not work on them. Over a three-hour period, officials responded to 25 overdoses, police said.