Chelsea fans have been urged to provide evidence following concerns over their safety during Thursday's Conference League semi-final. The issue arose after numerous Djurgarden fans managed to secure tickets in the home sections of Stamford Bridge.

Social media was flooded with videos showing hundreds of Swedish supporters in the home areas during the second leg, which Chelsea won 1-0, securing a 5-1 aggregate victory. Reports indicate that some Djurgarden fans even climbed over partitions to access the away section.

The Chelsea Supporters' Trust released a statement, calling this incident "the most serious breach of stadium security in recent memory," and emphasized that it "significantly undermines any security protocols Chelsea FC put in place." The organization plans to formally write a letter of complaint to Chelsea, demanding a thorough investigation into the ticket sale process and the club's security response during the match.

Chelsea has acknowledged the issue, stating that the safety and security of supporters is "of paramount importance." The club mentioned that increased restrictions were placed on ticket sales and distribution before the match. However, they admitted being aware of a large number of away supporters in home areas across the stadium.

In response, Chelsea has committed to reviewing all ticketing arrangements and implementing necessary changes. They also plan to share their findings with the Fan Advisory Board. BBC Sport has reached out to UEFA and Djurgarden for comments.

With the victory, Chelsea is set to face Spanish side Real Betis in the final, scheduled for Wednesday, 28 May, in Wroclaw, Poland.