Dueling groups of protesters converged on a wealthy Houston neighborhood in reaction to last weekend's not-guilty verdict in the shooting death of Florida teen Trayvon Martin.
Around 80 people gathered Sunday on a street in Houston's River Oaks area, some carrying American flags and shouting support for stand-your-ground self-defense laws.
Their presence was in response to several hundred people organized by Houston activist Quanell X, who led a march for more than an hour through the same neighborhood's streets.
Police officers, many on horseback, kept the crowds moving and separated.
Except for some insults shouted, the marches and rallies appeared peaceful.
Crowds have rallied in dozens of U.S. cities, urging authorities to change self-defense laws and pressing federal civil rights charges against the former neighborhood watch leader who killed Martin.