NORWALK - Fire officials say they've determined arson was the cause of an apartment fire in Norwalk.

Fire officials say gasoline was poured by someone in the back of the apartment building, located on 45 Wall St., before it was set on fire on Aug. 13.

The fire left 10 people homeless, and four of them were hurt, two critically.

Two residents were forced to make a 20-foot jump from their windows onto train tracks down below in order to escape the intense smoke and flames.

Norwalk fire inspector Chris Hansen says this was one of the biggest fires the city has experienced in the last five years. Hanson also says there is a person of interest in the case.

Anyone with information on the fire should call the Norwalk Fire Department at (203) 866-3312.

Norwalk fire deemed suspiciousNorwalk fire leaves 10 homeless