Belfast City Council party group leaders will meet on Thursday to discuss the deaths of two people who died after attending the Emerge dance music festival in Belfast at the weekend.
Mia Keevan, 17, from County Tipperary became unwell at the event and died shortly afterwards in hospital.
In a separate incident, 24-year-old Trae Keenan, from County Down, died in rented accommodation in the city centre a few hours after the event ended.
Two other people remain in hospital after attending the dance festival.
The meeting comes after Belfast City Council officers met the organisers of Emerge and other key stakeholders on Wednesday for a “de-brief”.
Councillors have told the News NI that “questions need to be answered”.
Emerge music festival is the biggest dance music event in Northern Ireland.
It usually takes place over the August bank holiday weekend at Boucher Playing Fields in south Belfast and attracts crowds of about 40,000 dance music fans each day.
This year the festival was headlined by Fatboy Slim on Saturday and Bicep on Sunday, while Sammy Virji, Fjaak, Sonny Fodera and Danny Howard were also on the line up.
Shine productions, which organised the festival, has been approached for comment.
Mia was visiting Belfast from Carrick-on-Suir to attend the event.
Investigations are still continuing into what caused her death.
Belfast district commander Supt Allister Hagan said: “During the event it was reported that a 17-year-old girl had become unwell. Sadly, she subsequently died in hospital.”
Mr Keenan also attended the festival and took unwell and died after he returned to his rented accommodation in Belfast.
He worked as a chef and had a four-month-old son.
The Irish News reported Mr Keenan had previously suffered from heart complications and asthma.
The family told the newspaper he had suffered a panic attack and his death was not linked to drugs.
Police are still investigating both deaths and said a number of arrests were made over the weekend.
Supt Hagan said several organisations – including the Police Service of Northern Ireland and Belfast City Council were involved with making sure the festival passed off safely.
He said officers made seven arrests over the weekend and issued three fixed penalty notices, one caution and nine community resolution notices.
He said offences included disorderly behaviour, drink-driving, assault on police and possession of controlled drugs.
