 U.S. weather forecasters have warned that record-breaking heat is likely to continue in California as the emergency service continue to battle wildfires in parts of the state. Firefighters are trying to contain a fast-moving blaze which has broken out near Yosemite National Park. Hurricane Beryl's been downgraded to a tropical storm after hitting southeast Mexico. Forecasters said it had begun to weaken as it struck the Yucatan Peninsula.