A tropical storm has formed in the Atlantic and is expected to strengthen, prompting hurricane watches for some of the Caribbean islands devastated by Hurricane Irma.

Ash rained down across Los Angeles on Sunday from a destructive wildfire that the mayor said was the largest in city history.

A weakening Tropical Storm Lidia marched up Mexico's Baja California Peninsula on Saturday, flooding streets and homes in resort cities, stranding tourists and leaving at least five people dead