Six people – five of them children – have died and about 47 others have been injured in a stampede of panicked concertgoers in a small town on Italy’s Adriatic coast, authorities have said.

Three girls, two boys and an adult woman, who had accompanied her daughter to the disco in Corinaldo, died at the event on Saturday where an Italian rapper was entertaining the crowd. The age of the five child victims – three girls and two boys – ranged from 14 to 16. The mother, who had accompanied her daughter to the event, was 39.

Ancona’s police chief, Oreste Capocasa, told RaiNews24 on Saturday morning that 13 of the injured were in a serious condition. Some 800 people were at the event.

Police are pursuing reports that the audience at rapper Sfera Ebbasta’s concert at the Lanterna Azzurra nightclub ran for the exits after someone sprayed a substance similar to pepper spray.