Gonzalo strengthens into Category 4 hurricane again - NHC

(Reuters) - Gonzalo has strengthened again over the Atlantic into a Category 4 hurricane on the Saffir-Simpson scale, the U.S. National Hurricane Center (NHC) said on Thursday. Gonzalo was located about 540 miles (870 km) south-southwest of Bermuda with maximum sustained winds of 140 mph (225 kph), the NHC said. (Reporting by Arpan Varghese in Bangalore; Editing by Alison Williams)