Before Napoli registered a 3-0 win in the 2nd leg game against Eintracht Frankfurt to reach the Champions League quarterfinals clashes broke out in the centre of Naples between Frankfurt fans and police on Wednesday.
Car windows were broken and fans hurled flares, chairs and other objects as innocent bystanders took shelter in bars and restaurants. A police car and other vehicles were set alight.
Police in riot gear eventually managed to calm the situation, shepherding the fans onto buses to take them to their hotels.
Police had been on high alert in the Italian city — around 800 officers had been deployed — as more than 600 fans arrived from Germany despite Frankfurt forgoing its allocation of tickets for the round-of-16 match in protest. That number was boosted further by Atalanta ultras, who have a bitter rivalry with Napoli.
The German club was objecting to a decision by local authorities in Naples banning any fans who are residents of Frankfurt from buying tickets, following unrest between supporters during the first leg in Germany.