Serbia's striking university students on Monday launched a 24-hour blockade of a key traffic intersection in the capital, Belgrade, stepping up pressure on the populist authorities over a deadly canopy collapse in November that killed 15 people.

One of Belgrade's key traffic arteries turned into a campsite on January 27. Thousands of students and citizens gathered for an all-day road blockade, demanding political and criminal accountability for the deaths of 15 people at Novi Sad's railway station on November 1.