A deadly fire at a pop concert in Kocani, North Macedonia, has led to the shutdown of several nightclubs due to safety violations. The government has declared a national mourning period and 16 people are in custody.

Municipal workers in Kocani dug graves on Tuesday for the dozens of young people killed in a nightclub fire as protests were held in cities across North Macedonia. Authorities said the nightclub blaze in the eastern town early on Sunday was caused by indoor use of pyrotechnics and numerous safety violations at the venue,