By CBSMiami.com Team

MIAMI (CBSMiami) – Prosecutors granted immunity to the ex-girlfriend of Florida Congressman Matt Gaetz, according to a source familiar with the case.

She testified last week in front of a grand jury that was hearing evidence in the investigation into Gaetz.

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He has been under investigation to determine if violated sex trafficking laws and obstructed justice in that investigation.

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The investigation surrounds whether he had sex with a 17-year-old girl for money and took her across state lines.

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Gaetz denies any wrongdoing.

CBSMiami.com Team