Sony's PlayStation 4 sales top 50 million units worldwide

TOKYO (Reuters) - Sony Corp said on Wednesday sales of its PlayStation 4 video game console had exceeded 50 million units as of Dec 6 helped by strong demand during the year-end holiday season. The PlayStation 4, which went on sale in late 2013, has been Sony's fastest-selling game console. (Reporting by Makiko Yamazaki; editing by Jason Neely)