A growing force of firefighters battled massive infernos across the Los Angeles area on Monday as more powerful winds moved in and threatened recent progress against wildfires that have destroyed thousands of homes and killed at least 24 people.

Millions of people in Southern California are on alert as critical fire weather returns to the region this week. This comes as thousands of firefighters are continuing their relentless assault on several wildfires that broke out in the Los Angeles area since last week.