A brush fire ignited Monday, Nov. 16, near Aguanga, charring a half-acre but causing no injuries.The blaze was reported about 7:45 a.m. in the area of Highway 371 and Wilson Valley Road, southwest of the Cahuilla Indian Reservation, according to the Riverside County Fire Department.Five engine crews, three hand crews and one water-dropping helicopter were sent to the location and encountered flames moving at a slow to moderate rate.A stretch of Wilson Valley Road was closed.There was no immediate word on what sparked the blaze.