According to Sky Sports Italia, Dutch authorities banned Lazio fans from attending the away game against Feyenoord in the Champions League group stage.

At 0:45 a.m. on October 26, Beijing time, in the third round of the Champions League Group E, Lazio will face Feyenoord away from home. However, Lazio fans were unable to go to the away game because the Dutch authorities believed that there was a risk of conflict in this game and therefore issued a ban on the away team’s fans.
During the 2015 Europa League match between Roma and Feyenoord, some Feyenoord fans caused riots in downtown Rome and damaged the famous Bacaccia Fountain in Piazza di Spagna in Rome. Since then, conflicts have arisen between the fans in the two cities. In last season’s Europa League, Roma met Feyenoord again. In both rounds of the game, the governments of both sides banned fans of the other side from attending the away game.
Although Lazio and Roma are rivals in the same city derby, the municipal governments of Rome and Feyenoord are still worried about fan conflicts. Sky Sports Italy stated that when Lazio plays Feyenoord at home in the Champions League group match on November 7, Feyenoord fans will almost certainly be banned from coming to Rome to watch the game.