Sheriffs say person killed by falling tree in Prairieville as city of New Orleans falls back on power generators after network fails
5.32am BST
More than one million customers in Louisiana are without power, according to poweroutage.us, which tracks outages.
The energy company Entergy earlier confirmed that power had been cut off across the entire of New Orleans, describing “catastrophic transmission damage”.
5.18am BST
Ida has weakened to a category 1 hurricane on the Saffir-Simpson Hurricane Wind Scale, according to the US National Hurricane Center latest advisory.
Ida is now located about 30 miles (50 km) east-southeast of Baton Rouge, Louisiana, with maximum sustained winds of 95 miles per hour (155 km per hour), the NHC said.