New York officials have joined Cardinal Timothy Dolan in condemning the scalping of tickets to see Pope Francis' motorcade during his upcoming visit to New York City.

About 80,000 tickets were dispersed through a city-sponsored lottery system for the pope's Sept. 25 procession through Central Park.

While ticket holders must show valid photo identification at the event, no name is printed on the ticket -- creating the opportunity for "scalpers" to sell their tickets for a high profit. 

Tickets were being sold on secondary markets such as eBay and Craigslist for thousands of dollars soon after lottery winners were notified. One posting on Craigslist advertised two tickets for $750. 

But the office of New York City Mayor Bill de Blasio said Monday it is working with the federal government to remove such postings. 

"The City, along with the United States Secret Service, are monitoring ticket sales sites to remove tickets that are for sale," Monica Klein, deputy press secretary for the mayor, told FoxNews.com in an email.

As of Monday morning, eBay and Craigslist had removed several papal ticket sale postings from their websites.

Dolan, the archbishop of New York, said tickets were free for a reason — to give as many people as possible the chance to participate in the pope's visit, including those with "modest means."

Sen. Daniel Squadron said the ticket scalping is in direct conflict with the spiritual leader's message.

Sen. Chuck Schumer commended eBay's decision to ban pope event tickets.

FoxNews.com's Cristina Corbin contributed to this report.