French police said Saturday that two people had been arrested after the Lens team bus was vandalised while parked outside their Paris hotel ahead of a Ligue 1 game against Paris Saint-Germain. Images on social networks and French media showed the bus, which has a huge Lens logo, smeared with yellow graffiti saying "PSG", "Paris SG", "Ultras Paris" and another insulting Lens. 

The two people were arrested after the attack, a police source said, without giving further details. Lens said they would not comment because they "wanted to concentrate on our match" but indicated that they might press charges. PSG, second in Ligue 1, host fifth-placed Lens on Saturday afternoon in a crucial duel in the race for the title and European places. The incident follows an infamous banner displayed by PSG fans at the 2008 French League Cup final between the clubs. It attacked 'Ch'tis', as people from the northwest corner of France are known, saying "Paedophiles, unemployed, inbreds: welcome to the Ch'tis" Five fans were convicted in the case, fined and banned by PSG. PSG released a statement on Saturday supporting Lens.