Michigan's recent string of tornadoes has brought the statewide total to 25 so far this year through Saturday, according to the National Weather Service. "Through mid-May, that's the fastest pace we've experienced," said Steven Freitag, a meteorologist with the agency based in White Lake Township.

After a chaotic and emotional day, the clean-up effort in Collings Lakes, New Jersey, is just beginning in this community.

At least five people have died and more than 5,000 buildings were damaged after a tornado tore through St Louis in Missouri. The tornado swept along a major road, tearing roofs off houses, uprooting trees and knocking down power lines on Friday evening.