Ukrainian President Viktor Yanukovich has agreed to peace talks with the leaders of protesters who have called for his resignation. Champion-boxer-turned-politician Vitaly Klitschko and other protest leaders called for a 24-hour police truce until 8 p.m. local time, dependent on the outcome of the talks. Still, tensions remain high throughout Kiev following some of most violent protests in the city’s history.

Since November, pro-European liberals have protested the Yanukovich government, calling for early elections after Yanukovich rejected a free trade deal with the European Union. In recent days, the protests in Kiev have become increasingly violent. At least three protesters have been killed since the demonstrations began, two from gunshot wounds and another beaten to death. More than 150 police officers have also been injured in the protests.