NORFOLK, Va. -- Some illegal immigrants, including members of a violent Salvadoran gang, got onto the world\'s largest naval base to do construction work, federal investigators allege in court records.

No charges have been filed and it was unclear how many illegal immigrants made it onto Norfolk Naval Station. A Navy spokeswoman said Tuesday there is no security problem at the base.

\"Appropriate security measures are in place at all of the installations in the region,\" said Beth Baker, a spokeswoman for the Navy\'s Mid-Atlantic Region Command. \"We continuously monitor those, check those, and they\'re appropriate given the current threat environment.\"

Court records allege that construction company owners have conspired with people at the base pass office so the undocumented workers may get through the base gates.