On March 4, opposition deputies in Serbia threw smoke grenades and tear gas inside the parliament to protest government policies. This protest followed public anger over a train station roof collapse four months ago that killed 15 people. The demonstrations, initially about the collapse, have become a major challenge to the Serbian government. During a legislative session, the ruling Serbian Progressive Party (SNS) approved the agenda. Some opposition politicians rushed to the speaker’s podium, where they clashed with security guards. Others threw smoke grenades and tear gas, filling the air with black and pink smoke, which was seen live on TV. The protests have grown into one of the biggest challenges for the government.