New details have emerged surrounding allegations that New Jersey Sen. Robert Menendez used underage prostitutes, with his name mentioned nine times on what appears to be a “ledger of prostitution activities.”

The Democrat senator is alleged to have slept with underage prostitutes while on a trip in the Dominican Republic. In January 2013, federal agents found a black notebook in the home of Menendez’s close friend Salomon Melgen listing a host women’s phone numbers and nationalities, reports Politico.

The book contained a host of women, many “denoted simply by a single name in quotation marks,” according to FBI Special Agent Gregory Sheehy.

Melgen, a Florida eye doctor and Menendez, are both embroiled in a federal bribery case. On Monday, the U.S. Department of Justice said there was “corroborating evidence” to substantiate the claims of prostitution. (RELATED: Underage Prostitution Allegations Against Robert Menendez Backed By ‘Corroborating Evidence’)

In an affidavit that, among other things, detailed the contents of the notebook, Sheehy mentions Menendez on nine separate pages. “On each of those pages, Senator Menendez’s name appears along with the names and phone numbers of several women and men,” wrote Sheehy.

“On one of these pages, one of the women’s names is accompanied by her nationality, ‘Spain’; on a second page, one of the women’s names is accompanied by the name of a city in the Dominican Republic, ‘Macoris’ and on a third page, one of the women’s names is listed in quotation marks as ‘Jaditza,'” Sheehy added.

In further bad news for Menendez, the DOJ says the senator’s trip to the Dominican Republic was “during time frames in which one unidentified alleged minor victim specifically claimed to have had sex with him.”

The DOJ is involved in a bitter battle with Menendez’s lawyers who have sought to throw out their indictments in 15 filings made July 20. On Monday, the Justice Department said both Menendez and Melgen had “mischaracterized lawful and ordinary investigative steps as intimidation, coercion and abuse.”

But Menendez’s staff quickly shot back, telling NPR:

There is not a single shred of evidence to support any allegation that the senator was involved with prostitutes – of any age – and the government knows it. They also know that none of it is related to the case.

Follow Guy on Twitter

Content created by The Daily Caller News Foundation is available without charge to any eligible news publisher that can provide a large audience. For licensing opportunities of our original content, please contact licensing@dailycallernewsfoundation.org.