Pro-democracy protests in Hong Kong broke a nearly two-week peaceful streak as protestors and police clashed in a cloud of tear gas and makeshift weaponry.

A peaceful march had been planned to push back against the government-installed "smart lampposts" that sparked concerns over state surveillance.

Some protestors reportedly began to dismantle lampposts as others wielded slingshots, poles, iron bars, and bricks against police, who broke a 10-day streak of not firing tear gas into the crowds.

Visit Business Insider's homepage for more stories.

Pro-democracy protests in Hong Kong descended into violent chaos over the weekend as authorities and protestors clashed and broke nearly two weeks of peace.

Hundreds of protesters shut down streets and wielded slingshots, poles, iron bars, and bricks in the fight with police that bloomed after a planned march against the government-installed "smart lampposts" that sparked concerns over state surveillance.

Police fired pepper spray and tear gas, breaking a 10-day streak of no tear gas and adding to the 1,800 canisters police said they have fired in the clashes since the movement's actions first emerged in June.

Read more: A protester takes us inside the demonstrations in Hong Kong

Demonstrators clash with riot police during a protest in Hong Kong, China, August 24, 2019. Kai Pfaffenbach/Reuters

The government in Hong Kong said smart lampposts only collect data on traffic, weather and air quality, according to the Associated Press.

However, protestors reportedly dismantled some poles with saws and ropes as a stark rebuke to the technology after authorities reportedly announced 400 of the smart lampposts would be installed in four of the territory's urban districts.

"Hong Kong people's private information is already being extradited to China," organizer Ventus Lau told the Associated Press ahead of the procession. "We have to be very concerned."

The protests began in June over a now-suspended bill that would have allowed the extradition of Hong Kong residents to China before widening to address free elections and independent investigations into alleged police brutality.

Since then, protestors have organized several large-scale marches, the storming of governments buildings, widespread strikes around the city, and the shutting down of an airport.

Read more:

A human rights lawyer mysteriously disappeared and a UK consulate worker was detained for 15 days as China cracks down on Hong Kong supporters

Hong Kong activists are getting protest tattoos of umbrellas, gas masks, and a bleeding eye, in a bold break with the movement's anonymity

Facebook and Twitter say they've detected a Chinese propaganda campaign targeting Hong Kong protesters