Multiple United Airlines flights made emergency landings at Los Angeles International Airport (LAX) following reports of engine fires and other issues. Passengers were evacuated safely on the tarmac using emergency slides after landing. A Newark-bound flight experienced a significant incident where an engine reportedly burst into flames mid-flight, prompting an immediate return to LAX. The Federal Aviation Administration (FAA) issued a ground stop as a precautionary measure in response to the situation. While evacuating, some passengers disregarded safety protocols, leading to frustration among flight attendants. Overall, the timely response ensured passenger safety during these tense situations.