Harvey leaves widespread devastation as it hits Texas with 130mph winds
Storm Harvey is expected to lash Texas for days, bringing as much as 40 inches of rain.
The storm has also triggered tornadoes and flash floods.
One person died in a house fire as Hurricane Harvey roared across Rockport, Texas, overnight, Mayor Charles J Wax said in a news conference.
Harvey was the strongest storm to hit the state, the centre of the US oil and gas industry, since 1961.
It came ashore as a hurricane with winds of 130mph.
Residents were warned of "catastrophic and life-threatening flooding" to come, after Hurricane Harvey made landfall knocking down trees and electricity cables, and leaving up to 300,000 without power. ■