Millions without power after Hurricane Zeta batters southern US

People look at a downed tree after Hurricane Zeta made landfall (Chris Granger/The Times-Picayune/The New Orleans Advocate via AP)

At least three people have died after Hurricane Zeta struck southern US states, knocking out power to more than two million homes and businesses.

Officials said life-threatening conditions would last into Thursday, with Zeta crossing the mid-Atlantic states as a tropical storm before moving offshore around Delaware and southern New Jersey.