The construction worker fell about 15 feet.
Authorities are urging people to repeatedly measure ice as they venture out on lakes
Construction on the pipeline started earlier this month.
Todd Sieben was trapped in the skid steer.
The Meeker County Sheriff's Office and OSHA are investigating.
Authorities say it happened Friday when a boom truck tipped.
It happened near the Lake Elmo Airport on Friday afternoon.
The 46-year-old died at the scene.
He was reportedly hiking with a friend at the time.
He had been traveling westbound on Interstate 694.
The 62-year-old was 30-feet in the air when the arm of his boom truck broke.
Alaric Lamke, 15, died over the weekend.
The 15-year-old was run over by the machine as he helped move a tree.
Both victims are said to have life-threatening injuries.
He fell approximately 30 feet onto rocks.
It happened Saturday afternoon in Douglas County.
The accident happened just before 8:30 p.m. Saturday, July 25.
Reports say she was on her way to go fishing with a family member.
It's believed dusty road conditions contributed to the crash.
The tragedy happened Monday in southeast Minnesota.
The 62-year-old was pronounced dead at the scene.