Fire caused extensive damage to two attached homes in downtown St. John's on Wednesday night. 

The blaze broke out around 11 p.m. on Parade Street, which is around the corner from the St. John's Regional Fire Department's flagship Central Fire Station on Military Road. 

A person in the area alerted a police officer, who in turn called the fire department.

No one was injured, but both homes were heavily damaged.

Area neighbours told CBC that two families were displaced.  

One family has been staying with relatives, while the other family was said to be at a cabin.  

Barbara McDonald watched the fire from her house, two doors from where the fire broke out. 

"[We were] Very concerned, because where the houses are joined, we couldn't go to bed, had to stay see what happened," she said. 

The cause is under investigation.