A 28-year-old motorcyclist was killed in a crash Sunday on Route 28 in Middlesex Borough, authorities said. Ramon Sanchez was riding west in the area of Fairfield Avenue at about 1:10 p.m. when he struck an SUV turning on to Route 28, Middlesex Borough police said in a statement. Sanchez, of Dunellen, was brought to a local hospital where he died of his injuries. The crash remains under investigation. Anyone with information is asked to call Sgt. Mark Melchiorre at 732-356-1900 ext. 338. Our journalism needs your support. Please subscribe today to NJ.com. Jeff Goldman may be reached at jeff_go…