Wildfires hit a grove of sequoia trees in Sequoia National Park in California, Sunday, September 19, as firefighters battled to keep the flames away from other groves.
Fire officials warned that hot, dry weather and strong winds contributed to critical fire conditions as two lightning-sparked fires merged on the western side of the park.
The park was evacuated last week along with parts of a nearby town of about 2,500 people.
Giant sequoias are adapted to fire, but the intense wildfires fueled by climate change can overwhelm the fires. (AP)