Dozens of people were arrested in Paris on Saturday night after celebrations for Paris Saint-Germain’s (PSG) second Champions League title turned violent, authorities said on Sunday.

Fans had gathered in the French capital to celebrate PSG’s dramatic penalty shootout victory over Arsenal in Budapest, marking the French club’s consecutive Champions League triumph.

Around 20,000 people assembled on the Champs-Élysées, while others marched along avenues near the Arc de Triomphe, setting off flares and blaring car horns.

Paris police reported that smaller groups caused disturbances in multiple locations, vandalising shops, setting fires, and even attempting to storm a police station in the upscale 8th Arrondissement.

By 10pm, 45 people had been taken into custody. One police officer was injured during the unrest.

Authorities also contained a crowd of approximately 1,000 people near PSG’s stadium in the 16th Arrondissement, clearing barricades made from bicycles.

The main ring road surrounding Paris was briefly blockaded by demonstrators before police dispersed the crowd.

The incidents come nearly a year after PSG’s first Champions League title, when violent celebrations in Paris led to more than 500 arrests nationwide and 201 people injured.

For Saturday’s celebrations, the city was on heightened alert, with thousands of officers deployed to manage the crowds.

PSG’s victory denied Arsenal what would have been their first Champions League title in the club’s 140-year history, following their first Premier League triumph in 22 years.

While the win sparked jubilation among fans, it also highlighted the challenges of managing large-scale celebrations in Paris.