MILWAUKEE (AP) — Residents jumped from the windows of a four-story apartment building in Milwaukee during a Mother’s Day fire that killed four people, critically injured four others and grew so intense that the blaze outmatched the first firefighters to arrive, authorities said.

Four people have died and four are critically injured after a fire broke out at a multistory apartment building in Milwaukee’s Concordia neighborhood Sunday morning, CNN affiliates report.

At least one person has died in an apartment fire, according to the Milwaukee County Medical Examiner's Office, which is at the scene.