05/23/2012 09:13 EDT | Updated 07/23/2012 05:12 EDT

Bolton fire damages 6 townhomes

An early morning fire left a row of six adjacent townhouse units in Bolton badly damaged on Wednesday.

Residents of the townhouses on Alderbrook Place were awoken by neighbours at about 4 a.m. on Wednesday. Everyone was able to escape unharmed but at least two of the six units are badly damaged.

Among them was the home where Nick Traccogn lives.

"I woke up to my dad screaming: 'There's fire next door, let's get out,'" Traccogn told CBC News.

No one was injured in the fire and Traccogn and his family were able to escape but he was worried about his pet hedgehog, Chester, who was left behind.

After he escaped, Traccogn told firefighters about his pet. At first they found his empty, overturned cage, then went back to find Chester hiding under the ashes.

"I couldn't believe it, I thought he was done. I'm happy he's good," said Traccogn.

The Ontario Fire Marshal's office is investigating the blaze. Spokesperson Mike Ross said the roof of all six units suffered extensive damage. He said the fire caused the second floor in three of the six units to collapse.

The cause of the fire is not yet known.