A man changing a tire on his vehicle was struck and killed by a semi-trailer on Interstate 35 near Pine City. It happened shortly after 3 o’clock yesterday afternoon. The State Patrol says the victim, a 40 year-old man from Ely, was changing a tire on the side of the freeway when the passing truck’s tires struck him. The driver of the semi, a 48 year-old man from Isle, was not hurt. No names have been released.