Four separate spot fires that were likely deliberately ignited near Highway 74 in Lake Elsinore kept fire crews busy until each one was contained Friday, March 18.The blazes were reported about 2:50 p.m., two at 10th Street and Conard Avenue, one at Highway 74 and Ardenwood Way and another in ornamental vegetation adjacent to a riparian area west of Rosetta Canyon Sports Park, according to the Riverside County Fire Department.The agency said that multiple engine crews and truck companies were sent to the fires, which were concentrated within 1,000 feet of each other.Firefighters were able to encircle all of the small blazes by 3:15 p.m., according to officials at the scene.Cal Fire arson investigators were summoned to examine each fire and determine what happened.No sus