Subway is the largest chain in the US, having long leapfrogged industry giants such as McDonald's. But after the death of its cofounder Fred DeLuca in 2015, Subway has taken a turn for the worse.

The rise, fall and future of Subway restaurants. From the success of the $5 footlong to store closures, declining sales and franchisee revolts in recent years, we unpack what's happening with Subway.

BOSTON (WTVD) -- A woman was rescued by bystanders when she fell onto the tracks of a Boston subway Thursday. According to transportation officials, the woman stepped off the platform before falling ...