During an ice escort, the Coast Guard Cutter Hollyhock crashed into a another boat in northern Lake Michigan.
The Hollyhock has significant damage including two holes about 20 feet above the water line.
The Mesabi Miner was on the way to Gary, Indiana and received a crack in the bow.
No injuries were reported and neither boat has any flooding.
The Hollyhock arrived in St. Ignace Sunday night for a damage assessment.