Northern Ireland fans attending a Nations League match in Bulgaria faced 'shameful and totally unacceptable treatment,' according to the Amalgamation of Official Northern Ireland Supporters' Clubs. Fans reported being denied access to basic necessities like water and toilets after being locked in their section of the stadium for an extended period. Additionally, some supporters were subjected to violent attacks while returning to the city center, with one requiring hospitalization. The Irish FA has raised these concerns with UEFA, emphasizing the need for better treatment of their fans. The police's handling of the situation, including the absence of the PSNI, was criticized for exacerbating the issues faced by the supporters. Overall, the experience has prompted calls for an investigation into the treatment of Northern Ireland fans at the event.