A dog has died and two cats are missing after a house fire spread to a second home Sunday morning in Regina.

Fire crews headed to a house on the 1700 block of Toronto Street just before 6 a.m. CST to find it engulfed in flames.

All of the people inside were able to get out, although one person went to hospital with a burn to their arm.

Firefighters found one dog had died in the fire.

The flames spread to a neighbouring home. Nobody was inside, although firefighters were told two cats were unaccounted for. The cats are still missing. 

Toronto Street Fire Foam

A Regina Fire Department aerial unit pours fire foam on a home on Toronto Street to help prevent fire from spreading from a neighbouring home. (Regina Fire Department)

Deputy Fire Chief Gerard Kay called the fire fight 'intense'. 

Firefighters set up a ladder to battle the flames from above the building for more than an hour. They sprayed a mix of fire foam— a water and compressed air substance which looks similar to shaving cream—and water to fight flames on the roofs. 

Kay said Sunday morning the damage to both homes is extensive.

Investigators are working on finding out what caused the fire.