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James Nielsen/AP

A George Zimmerman supporter holds a sign during a counter-demonstration of activist Quanell X's group march in the River Oaks community in Houston on Sunday.

Supporters of Trayvon Martin and George Zimmerman came face-to-face Sunday during a march through a wealthy neighborhood in Houston.

Some 80 pro-Zimmerman supporters waived signs and shouted slogans at Martin supporters as they passed through the neighborhood of River Oaks, an upscale enclave deemed "Houston's Sanford, Florida" by the organizer of the Trayvon rally, the Houston Chronicle reported.

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Separated by cops on horseback and specialized crowd-control units, the two sides traded insults and shouted slogans at one another, but never clashed.

As the pro-Martin group passed with signs calling for "Justice for Trayvon," Zimmerman backers shouted in support of Florida's controversial Stand Your Ground law and held up signs that said, "Keep Calm and Stand Your Ground," "If the Head Is Split You Must Acquit," and "Remove the Black Panthers from the U.S.A."

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One woman in the Zimmerman group held a sign that said "We're racist & proud."

Austin resident Renee Vaughan echoed the sign's ugly sentiments by yelling, "We're racist. We're proud. We're better because we're white," at the Martin group as they passed, according to the Chronicle

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The march on River Oaks was organized by activist Quanell X, the leader of the New Black Panther Party in Houston.

During the rally, he dismissed the pro-Zimmerman crowd, telling supports, "To be honest with you, we don't give a damn about anybody supporting George Zimmerman and gunning down a child."

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The tense confrontation came a week and a day after the 29-year-old neighborhood watch volunteer was acquitted on murder charges for shooting the 17-year-old Martin in February 2012.

Over the weekend, more than 100 rallies protesting the ruling were held in cities nationwide.

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In New York on Saturday, the slain teen's mom, Sybria Fulton, was joined by Jay Z, Beyonce and Rev. Al Sharpton at a "Justice for Trayvon" rally.

Wearing a t-shirt with a photo of her son in a hooded sweatshirt, Fulton fought back tears as she told a crowd in lower Manhattan, "George Zimmerman started the fight and George Zimmerman ended the fight,"

"My son died without even knowing who his killer was...Today it was my son. Tomorrow it might be yours."

With News Wire Services