SHAVER LAKE, Calif. (AP) - Rescuers in military helicopters airlifted 207 people to safety after an explosive wildfire trapped them in a popular camping area in California's Sierra National Forest, one of dozens of fires burning Sunday amid record-breaking temperatures that strained the state's electrical grid and could lead to planned power outages. The California Office of Emergency Services said Black Hawk and Chinook helicopters were used for the rescues that began late Saturday and continued overnight from Mammoth Pool Reservoir. At least two people were severely injured and 10 more suffered moderate injuries. Two campers refused rescue and stayed behind, the Madera County Sheriff's Office said. A photo tweeted by the California National Guard showed at least 20 evacuees crammed inside one helicopter, crouched on the floor clutching their belongings. In another photo taken on the ground from a helicopter cockpit, the densely wooded hills surrounding the aircraft were in flames. The fire churned southward through dense forest and by Sunday afternoon was threatening a marina and cabins along Shaver Lake. Jack Machado helped friends remove propane tanks from the lodge Cottages at the Point. Sheriff's deputies went through the tiny town to make sure residents complied with evacuation orders. "The lake is totally engulfed with smoke. You can't hardly see in front of you," Machado said. "The sky's turning red. It looks like Mars out there." While some campers were rescued by helicopters, others made a white-knuckle drive to safety. Juliana Park recorded video of flames on both sides of her car as she and others fled down a mountain road. "A backpacking trip cut short by unforeseen thunder, ash rain, and having to drive through literal fire to evacuate #SierraNationalForest in time," Park tweeted....