Dublin Fire Brigade has paused to remember the Stardust Tragedy.
48 people died when a fire tore through the Artane nightclub in the early hours of Valentine's Day in 1981.
Families of survivors and victims will renew their call for a Commission of Investigation when they protest outside the Dail at midday.
They've rejected a report published late last year which found there's no justification for a new inquiry.
Siblings 17-year-old Marcella, 18-year-old George and 22-year-old Willam McDermott were among the 48 victims.
The demo will be followed by a silent vigil tonight to remember the dead.