A dozen people have been arrested following a devastating fire at a nightclub in North Macedonia that claimed 59 lives, with investigations at the site still ongoing, local officials said on Monday. The fire broke out at the nightclub in Kocani Municipality in the early hours of Sunday morning, killing 59 people and injuring 163, including 45 in critical condition. North Macedonia's Interior Minister Panche Toshkovski said on Monday that those arrested include managers, security personnel and ticketing staff at the nightclub. The Mayor of Kocani Municipality, Ljupco Papazov, announced his resignation following the tragedy and expressed his willingness to be investigated. Preliminary investigations showed that the blaze was triggered by a pyrotechnics display used by a live band who were performing on stage at the club. The fireworks used onstage were brought by the band, and the person responsible for operating them had died in the accident. Hundreds gathered in Kocani's town center on Sunday evening to silently pay their respects, lighting candles to honor those who perished in the fire. The small town of 30,000 people is struggling to come to terms with the scale of the tragedy, while North Macedonia has declared seven days of national mourning. Shotlist: Kocani, North Macedonia - March 16, 2025: 1. Various of nightclub building on fire, rescue in progress; police car, other vehicles; 2. Various of city view, traffic; 3. Various of people lighting candles to honor victims, people waiting to light candles. [Restriction - No access Chinese mainland]