One man is dead after an overnight fire at a Calgary homeless shelter in Victoria Park.

Police say fire crews were called just after midnight for reports of a fire at the Alpha House in the 200 block of 15th Avenue S.E.

About 160 people were forced out of the building. The fire started in the bathroom and the fire department says it was quickly extinguished by staff.

One man in his 30s was taken to hospital in life-threatening condition, where he succumbed to his injuries.

"He was severely burned," said EMS spokesperson Naomi Nania. "He was in critical, life-threatening condition with second- and third-degree burns and he was transported immediately to the Foothills hospital."

Although the fire and water damage was limited to the one room, the Alpha House says it will work to get their clients back in the building over the coming days.

"Just trying to figure the situation with the damage and then try and assess the timeliness of what needs to be fixed," said Adam Melnyk with Alpha House.

The arson unit is investigating the cause of the fire.