Three arrested in connection with deadly Brazil nightclub fire [View all]
(CNN) -- Police arrested three people and were searching Monday for a fourth in connection with the nightclub fire that killed 231 people in southern Brazil, state media reported.
The detainees will be held initially for five days while authorities investigate Sunday's blaze in the Kiss nightclub in Santa Maria, Marcos Viana, a police official told state-run Agencia Brasil. The five-day period can be extended for five more days, the news agency said.
The nightclub owners have pledged to cooperate with the investigation, according to a statement released by the law firm of Kummel & Kummel.
The club's license had expired in August and had not been renewed, a local fire official told Globo TV.