A security alert at Los Angeles International Airport temporarily shut down three terminals and caused several delays at the busy Californian transport hub, officials said on Thursday.
The alarm was raised after a passenger with a carry-on bag bypassed security screeners, Los Angeles World Airports spokeswoman Nancy Castles said.
Terminals five, six and seven were closed for roughly 90 minutes before the passenger was located, questioned and screened. Fourteen departures were delayed as a result of the alert, Castles said.
"Airport operations expect to return to normal as airlines try to keep flights on time and insert delayed flights into schedules as quickly as possible," Castles said.
The incident followed a security alert on a flight from Washington to Denver late Wednesday when a Qatari diplomat triggered a bomb scare after lighting a cigarette in one of the plane's restrooms.
The incidents come one week after the United States unveiled new security measures subjecting all US-bound plane passengers to screening methods that use real-time intelligence to target potential threats, replacing the mandatory screening of passengers from a blacklist of 14 mainly Muslim countries.
The measures were announced in the wake of a Nigerian man's failed attempt to detonate explosives concealed in his underwear on a Detroit-bound flight from Amsterdam on Christmas Day.