This story will be updated.
The U.S. National Toboggan Championships scheduled to begin races on Saturday in Camden has been postponed to Sunday due to frigid temperatures headed toward midcoast Maine.
The championship races usually take place over the course of two days, but will be packed into one day this year, officials said.
People will be able to check in and have their toboggans inspected Friday and Saturday, but all racing will happen Sunday.