Chelsea have advised travelling supporters to adopt heightened safety measures in Naples after two fans were taken to hospital following an incident in the city ahead of the club’s Champions League match against Napoli.

The team are in southern Italy for a decisive group-stage fixture at the Diego Armando Maradona Stadium. Local media report that visiting supporters were involved in an altercation away from main tourist areas, triggering an emergency response from Italian authorities.

In a statement on their official X account, Chelsea confirmed awareness of the incident and stated that two fans had sustained non-life-threatening injuries. The club used the opportunity to reinforce previously issued safety guidance for travelling supporters.

Chelsea reiterated that fans should remain vigilant, avoid travelling alone, and stay away from known flashpoints where rival supporters may gather. Recommended measures include remaining in well-lit, busy areas, using official transport where possible, and following instructions from local police and matchday stewards.

Security concerns around high-profile European fixtures in Naples are longstanding, with visiting fans regularly warned about the risk of clashes and opportunistic attacks. Local authorities have increased patrols around central squares, transport hubs and main routes to the stadium in an effort to reduce the likelihood of disorder.

Inside the stadium, segregation measures and controlled entry procedures are expected to be strictly applied. Chelsea officials are coordinating with UEFA, local police and Napoli representatives to monitor developments and provide updated guidance to supporters throughout matchday.

Chelsea have also asked any supporter who feels unsafe or witnesses an incident to contact local authorities immediately and to use the club’s emergency contact channels established for European away fixtures.