The U.S. Coast Guard has scheduled four days of hearings in Galveston early next week on a collision between a tugboat and a freighter that spilled nearly 170,000 gallons of fuel oil into the Houston Ship Channel.

According to a Coast Guard statement Wednesday, the hearings will begin at 1 p.m. Monday at the Galveston County Criminal Justice Center and will continue through Friday. The National Transportation Safety Board will participate.

No injuries were reported from the March 22 collision, but the oil is spilled coated some shores on the southern end of Galveston Bay. Mostly, though, it flowed into the nearby Gulf of Mexico, where some washed ashore as far southwest as Matagorda Island.