McDonald's sales rise 7.7 percent

OAK BROOK - McDonald's global same-store sales rose 7.7 percent in May, the world's biggest hamburger chain said Monday. The company said U.S. same-store sales, or sales at locations open at least a year, grew 4.3 percent. McDonald's said U.S. sales were helped by its breakfast offerings, new menu items including a Southern Style Chicken biscuit and sandwich and the chain's "emphasis on everyday affordability."