More than two weeks of protests in Pakistan came to a head Saturday evening when police clashed with thousands of protesters in Islamabad, the capital.
The clashes began as the protesters attempted to march on the official residence of Prime Minister Nawaz Sharif, according to The Wall Street Journal.
The protesters have called on Sharif to step down, arguing that he committed electoral fraud in 2013, among other things.
The protesters are loyal to Tahir ul-Qadri, pictured below, and Imran Khan, two opposition politicians.
The protests began Aug. 14 with a march from the city of Lahore to Islamabad. Despite some initial clashes, the Associated Press reported that the protests subsequently were "festive," with the protesters camped outside the parliament building.