Tents collapsed during church festivals in Detroit . More than 600 people from several states try to restore power , utility says . Man in Detroit suburb trapped in backyard by downed power line . CNN 's Carma Hassan contributed to this report . DTE Energy says 75-mph winds have downed 2,000 power lines in southeastern Michigan .
Tents collapsed during church festivals in Detroit . More than 600 people from several states try to restore power , utility says . Man in Detroit suburb trapped in backyard by downed power line . DTE Energy says 75-mph winds have downed 2,000 power lines in southeastern Michigan .