The national threat level remains at High or Orange for all domestic and international flights, while the threat level for flights bound for the U.S. from the United Kingdom has been reduced from Red to Orange, U.S. Homeland Security Department officials say.

Los Angeles World Airports (LAWA) has heightened alertness and increased security at its airports in response to the U.S. Homeland Security Department raising the national threat level for the aviation sector to High or Orange, according to airport officials.

Los Angeles World Airports is the city agency that operates Los Angeles International Airport (LAX) and three other Southern California airports.

Following the news Thursday, August 10th, of an alleged terror plot to destroy aircraft flying from the United Kingdom to the U.S., Los Angeles city officials said that they had no information indicating that any LAWA facilities or flights are the target of any specific threats or plots.

Los Angeles Airport Police are working with the Transportation Security Administration (TSA), other federal and local law enforcement agencies, and airlines to implement a range of security measures appropriate to the heightened security.

The law enforcement presence at LAX has included hundreds of uniformed and plain-clothes officers from Airport Police, the Los Angeles Police Department and various federal agencies, including the Federal Bureau of Investigation, the Federal Air Marshals, U.S. Customs and Border Protection and U.S. Immigration and Customs Enforcement, as well as K-9 patrols and special operations units.

Five airlines operate 20 daily nonstop flights between London-Heathrow International Airport and LAX — Air New Zealand, American Airlines, British Airways, United Airlines and Virgin Atlantic Airlines.

Due to new measures instituted by TSA, all passengers are being advised to not pack any liquids in carry-on bags, including beverages, hair gels and lotions, as well as electronic key fobs, airport officials said.

TSA officials have made exceptions to the liquid-gel ban for baby formula, breast milk, prescription medicine and up to four ounces of non-prescription medicine.

Passengers are advised to check the TSA’s Internet Web site at for the latest complete listing of what passengers may pack in checked luggage and carry-on bags.

TSA officials said screeners have been working hard to keep wait times at airport checkpoints reasonable.

Airport officials recommend that passengers on domestic flights arrive in their airline terminal two to three hours before their departure time and three to four hours before an international departure. This recommendation is in effect until the national threat level is reduced from Orange to Yellow, officials indicate.

Los Angeles World Airports officials said they remain committed to providing the necessary resources to maintain a high level of safety and security for the traveling public and airport workers.