The roof of an iconic nightclub in the Dominican capital collapsed early Tuesday during a merengue concert attended by politicians, athletes and others, leaving at least 98 people dead and 160 injured.

Axar.az reports, citing AP, crews were searching for potential survivors in the rubble at the one-story Jet Set nightclub in Santo Domingo, said Juan Manuel Méndez, director of the Center of Emergency Operations.

“We continue clearing debris and searching for people,” he said on Tuesday night. “We’re going to search tirelessly for people.”

Officials said it’s too early to determine why the roof fell.