A protest in Bolivia was turned on its head when off-duty police officers demonstrating over pay clashed with civilians who criticised their march through the capital.
About 500 supporters of President Evo Morales, some dressed in traditional Bolivian clothing, and 1,000 striking officers fought outside the leader's palace in La Paz.
During the unrest on the Plaza de Armas, a pile of sombreros, ponchos and whips were seized and later burnt by the police.
Officers fired tear gas to stop the supporters, who represent social movements and trade unions allied with Mr Morales, from gathering in the main square. Police then surrounded the area.
It was unclear whether Mr Morales, who has accused the opposition of plotting a coup, was in the palace, which was closed and under guard by a military unit not involved in the protests.
Since Thursday, low-ranking officers in the impoverished Latin American country have rioted to demand a pay increase.
Authorities accuse them of stockpiling weapons and pressuring other units to turn over their arms in an attempt to overthrow the leftist government - accusations the protesters deny.
The mutiny has since spread across the country.
Refusing to budge from their demand for a minimum pay rise to 2,000 bolivianos (€228), from the current average of €155 a month, police in the capital have denounced union leaders for caving in to the government by signing a deal setting a smaller increase.
"We will continue our protests because they are fair," said police sergeant Omar Huayllani, from the Santa Cruz garrison, one of the biggest in the country.
Mr Morales' government reached a pay agreement on Sunday with leaders of the police protest, but the rank and file officers reportedly rejected the deal demanding higher wages.
"Unfortunately, the president hasn't resolved anything yet," one striking policeman said. "We are thinking of taking more extreme measures."
As part of the deal, the government agreed that the wages of the country's 32,000 police officers should match that of other public sector employees, with a minimum monthly wage of nearly €240. It also includes improved pension benefits.