The war between Uber and a coalition of taxi drivers and elected officials in New York City continued this week after the private transportation company launched a media campaign blasting cabbies and Mayor Bill de Blasio.

Uber accused the mayor of discriminating against the private car service through his proposal to cap the growth of the popular ride-sharing company for a year in order to conduct a traffic analysis of the impact of the service on congestion in the Big Apple. In addition to putting a halt on Uber's rapid growth, some local politicians claim the company uses unfair and offensive tactics.

In one of Ubers' ads, titled "Don't let Mayor de Blasio strand New Yorkers," the San Francisco-based company took aim at yellow taxis for allegedly denying service in communities of color, and accused de Blasio of succumbing to the interest of big taxi donors.

"While taxis often refuse people in minority neighborhoods, Uber is there taking more people to and from minority communities outside Manhattan than anyone," a narrator says in a YouTube video. "Mayor de Blasio is pushing the agendas of his big taxi donors to limit Uber cars and drivers."

In response, de Blasio struck back, saying, "Uber is a multibillion-dollar corporation, and they're acting like one," reports PIX 11.

Council Member Ydanis Rodriguez also criticized Uber for publishing "a negative messaging campaign." He added, "The tactics used, filled with racially devise undertones and distortions of the truth, have no place in our city."

Over the weekend, de Blasio published an op-ed in the New York Daily News explaining that he is seeking to halt the expansion of new for-hire drivers to keep the Big Apple from being "flooded" by new drivers.

"More than 2,000 for-hire vehicles are being added to our streets every month, overwhelming the most congested parts of Manhattan," de Blasio wrote. "For perspective, that means we're facing the addition of over 25,000 cars to our streets over the next year -- the rough equivalent of two times the total number of yellow taxis in all of New York City."

However, Uber argues the mayor is trying to protect the Yellow taxis industry since it has contributed to his mayoral campaign.

"The public has a right to know what's behind the Mayor's push to cap Uber and to hear directly from real Uber drivers about the economic consequences of his proposal," an Uber spokesperson said. "The real story here is campaign contributions not congestion."

On Wednesday, Uber doubled down on their arguments, saying de Blasio's bill would cost New York nearly 10,000 jobs.

"[This cap] isn't about progressive politics. This is about contribution politics. This has nothing to do with [de Blasio's] politics," Uber NYC General Manager Josh Mohrer said, according to CNBC.

The New York City Council will review the mayor's proposal sometime this week.

Bronx Borough President Ruben Diaz, Jr. called for a study before consideration of any caps. In a statement released Wednesday, he said, "Technology has significantly changed the taxi industry in this city, and a study of that impact is certainly warranted. However, such a study should be enacted prior to placing any caps on growth on any segment of the taxi industry."

"The legislation before the City Council is flawed, and would have the unintended consequence of inhibiting the growth of the livery car services my borough and much of the city relies on for transportation," said Diaz, adding that the legislation should be withdrawn.

Watch Uber's ad below.