A massive fire that erupted at a nightclub in North Macedonia is feared to have killed at least 50 people and injured 100. The country’s interior ministry said the blaze broke at Pulse nightclub in Kocani in the early hours of Sunday morning. As many as 1,500 were said to have been in attendance at a concert by hip-hop duo ADN, when the fire starte at roughly 3am local time.

Pyrotechnic devices and fireworks may have ignited the fire, Interior Minister Panche Toshkovski told a news conference, adding that 100 are thought to have been injured. Dramatic social media footage showed sparks flying from the stage before catching on the ceiling and spreading, which eventually resulted in dark clouds of smoke billowing into the sky against the blaze.

According to The Mirror, a local radio station reported: “A catastrophic and tragic fire occurred last night at around 3am in the Pulse Disco Club in Kocani.

“Horrific scenes and a dramatic struggle to rescue the injured and survivors took place in the early morning hours.

“The number of victims is still unknown, with 20, 50 and up to 100 victims mentioned. Fire crews from all surrounding towns, as well as vehicles and medical teams, arrived to extinguish the fire and rescue the young people.

“It is assumed that this terrible tragedy, which has not been recorded in the history of Kocani, occurred due to the lighting effects in the disco during a concert by the group DNA.”

Those who were left injured are now being treated at Kocani General Hospital, according to local outlet Nova Makedonija.

Further footage on social media showed emergency services rushing to the scene, with fire crews entering the building as the blaze calmed down while locals stood outside in shock.

Prime Minister Hristijan Mickoski will reportedly travel to the scene, roughly 60 miles from the capital, Skopje.