One person is being treated for burns in hospital after a two-alarm fire broke out inside a public housing building in downtown Toronto early Friday morning.

A Toronto EMS spokesperson said the victim suffered burns to his or her lower limbs and was rushed to hospital with serious injuries.

Others may have suffered smoke inhalation or minor burns, said Toronto Fire Services spokesman Capt. David Eckerman.

The fire occurred in an 11th-floor suite in a Toronto Community Housing Corp. high-rise at 375 Bleecker St., near Bloor Street East and Sherbourne Street, at about 3:45 a.m.

Eckerman said residents were ordered to shelter in place, and some tenants went onto their balconies for fresh air.

The blaze was under control by 4:15 a.m., he said.

Investigators are looking into the cause of the fire.