BOSTON, Feb 27: US officials on Wednesday moved to arrest 20 airport workers in Boston for lying about their identities to get jobs, sources said, reviving security concerns at the airport where the planes that crashed into the World Trade Center took off on Sept 11.

“There was an investigation involving Social Security fraud involving the US Attorney’s office and the INS (Immigration and Naturalization Service),” one source said.

Another source said at least two of the workers staffed security checkpoints while others worked in food and cleaning services. None of the workers were airline employees or directly employed by the Massachusetts Port Authority (MassPort), which oversees Logan International Airport, New England’s largest airport, the sources said.

The round-up was similar to a wave of arrests carried out last December at Salt Lake City International Airport ahead of the winter Olympic games.

In that action, agents arrested and indicted dozens of illegal aliens for allegedly lying on security applications for their screening, cargo handling and other jobs at the airport.—Reuters