NEW YORK (CBSNewYork)Port Authority officials are lawyering up — a sign the investigations into four major road projects are advancing.

Both the Manhattan district attorney’s office and the U.S. Securities and Exchange Commission are investigating whether the Port Authority had the right to spend $1.8 billion in toll money to rebuild the Pulaski Skyway and three other New Jersey roads.

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Now, according to a report in The Record, more than 15 Port Authority officials, including in-house lawyers, have obtained outside attorneys, paid for by the agency.

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Investigators are looking into whether bond investors were misled.

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The highways are miles from the Lincoln Tunnel, though the Port Authority justified the expenditures by saying the projects would provide access to the tunnel.