Travel problems have persisted at Los Angeles International Airport following a power outage that darkened the entire facility and caused flight diversions, delays and cancellations.
Terminal 1 handles Southwest Airlines Co. flights and was cleared early Thursday after officials decided departing passengers needed to be rescreened.
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An airport tweet says the action was related to Wednesday night's outage and was taken out of an abundance of caution.
Following a security sweep, passenger screening lanes reopened before 7 a.m. But the airport says Southwest reports 11 flight cancellations and 15 delays related to the situation.
The power outage happened shortly before 6 p.m. Wednesday.
Electrical generators kicked in and all but three terminals had power within the hour.
Restoration of regular power to those terminals took three or more hours.