Belfast Councilor Mickey Murray has requested an immediate meeting between the council officials and the representatives. A 17 -year -old girl dies In the weekend.
The representative of the Alliance Party said that festivals mean “safe place”.
Two other people were rushed to the hospital after being ill in the same program in the Boucher playgrounds.
In the 30s, a woman remains in a hospital in a serious but stable position, while a teenage boy has been treated and expected to be completely cured.
Police said that interrogation about the death of a teenage girl is going on in the hospital after being unwell at the Emergade Music Festival at South Belfast on Sunday.
In a statement, Belfast District CDR Supta Alastair Hagan said: “During the two -day program, the local police was supported by expert officers from several units including air support, strategic support, dog section and Rhodes Politicing.”
He said that the officials made seven arrests over the weekend and issued thirteen immediate settlements including three fixed penalty notices, one precaution and nine community resolution notice.
An electronic concert, in the boucher playgrounds on Saturday and Sunday, was performed by Emerase with the appearance of over 40,000 people.
In a statement, Murray said that his honesty is with the loved ones of the young man who has lost his life in these circumstances “.
He urged people to “not speculate”, while the police interrogation is going on.
BBC News NI has contacted Belfast City Council and has emerged for a comment about calls for a meeting.