Talks at the Cop30 climate summit in Brazilwere disrupted on Thursday after a fire broke out in the venue, triggering an evacuation just as negotiators were preparing to try to land a deal to strengthen international efforts to address the climate crisis, The Guardian reported.

Thirteen people were treated for smoke inhalation, organisers said in a statement, after the fire broke out in the pavilion area of the conference centre in Belém, Brazil.

The cause of the fire, which was brought under control within minutes, was being investigated but was believed to be an electrical device, probably a microwave, Reuters reported, citing the local fire department, according to The Guardian.