WASHINGTON, D.C.: Two people were killed and 15 injured when a circus tent collapsed at a carnival in New Hampshire on Monday, local media reported. The collapse occurred amid severe weather warnings in the city of Lancaster in the northeastern US state, according to ABC affiliate WMUR. New Hampshire Governor Maggie Hassan said a state of emergency had been declared and said officials had been dispatched to the scene. The American Red Cross said it has also sent a team to aid emergency efforts. The National Weather Service said severe thunderstorms were expected in the area on Monday evening. Lancaster is about 100 miles (144 kilometers) from the New Hampshire state capital, Concord.