Thousands of protesters marched through downtown Chicago on Sunday in one of the city's largest demonstrations in years, airing grievances about war, climate change and a wide range of other complaints as world leaders assembled for a NATO summit.

A magnitude-6.0 earthquake shook several small towns in northeast Italy, killing four people, knocking down a clock tower and other centuries-old buildings and causing millions in losses to the region known for making Parmesan cheese.

Twenty-two states and the District of Columbia are backing Montana in its fight to prevent the U.S. Supreme Court's 2010 Citizens United decision from being used to strike down state laws restricting corporate campaign spending.

LeBron James finished with 40 points, 18 rebounds and nine assists and Dwyane Wade had 30 points as the Miami Heat beat the Indiana Pacers 101-93 to level their series at 2-2.