India, Oct. 22 -- Shots were fired outside Serbia's parliament building in Belgrade on Wednesday, and one person was injured.

Serbian President Aleksander Vucic, who has been facing anti-government protests, called the shooting "a terrorist act".

According to a video posted on NOVA TV news channel, armed security officers approached a large tent outside parliament. A few shots were fired, and then a fire broke out inside the tent, one of several erected this year by supporters of President Aleksander Vucic during anti-government protests.

AFP reported that firefighters quickly extinguished the blaze, and the charred remains of the tent were visible from a police blockade near the scene.

The cause of the fire was not immediately known,...