Texas governor warns on bill

Hurricane Harvey: Texas governor warns bill could be $180bn

He said the damage was worse than that caused by Hurricane Katrina, which devastated New Orleans in 2005.

Meanwhile, the head of the government's disaster management agency has warned that flood-hit states should not rely on Washington to pick up the bill.

Brock Long said Harvey should be a wake-up call for local officials.

Recovery operations are under way across Texas, and in neighbouring Louisiana, although many areas are still battling floodwater.