The state fire marshal says a fire at an apartment in the Brookfield Twp./Masury area was intentionally set. Crews were called just before 11 p.m. Monday to a triplex in the 8000 block of Roberts Streets. No one was living there at the time. Flames from the fire were so intense a house beside the apartment caught fire. Officials from Sharon, Vienna and Hubbard arrived on the scene to help Brookfield firefighters. No injuries were reported.