Police have pulled the body of a man from the rubble at the site of a massive propane facility explosion, but say an autopsy is needed to identify the man.

The body was recovered just before 7 p.m. Monday night, police say. But it's not yet known if it's the body of missing Sunrise Propane employee Parmindar Saini.

The fire marshal and Coroner are at the scene of the explosion this morning where the body was located.

Meanwhile, the city says 100 homes are still inaccessible more than two days after the massive blast that displaced thousands of residents and killed two people, including one firefighter.

Residents will not be able to return to those homes until asbestos around the structures can be cleaned up, the city says. Five streets are still closed off.

A few residents are being allowed into their homes just to assess damage. But they were warned their homes would have no gas or electricity.

The local Home Depot is offering a helping hand to people affected by the blast. 

Residents can pick up free plywood at the 90 Billy Bishop Way store across from Yorkdale Mall to cover up their damaged windows and doors. Residents will need to show proof that they live in the affected area.

Toronto mayor David Miller says the Ministry of Environment is currently working on a cleanup plan for the site. Miller also says air testing is occurring in the vicinity.

Miller has ordered a top-to-bottom reassessment of the city's zoning bylaws in response to the massive fire.

Firefighter Bob Leek, who was a 25-year veteran of the service, lost his life from the blast. Parminda Saini, an employee at the propane facility, is still unaccounted for. Officials have not said if the body they found is Saini's.

In an interview with CP24, Miller says improvements to by-laws will be made by the city and province if they are necessary.

Miller visited evacuated residents at York University on Sunday night and says people were patient but frustrated at the end of the day.

Residents say they had called the city to voice concerns about the Sunrise Propane facility in the past, but the city has no open files documenting the complaints, Miller says.

The mayor also told CP24's Talk TV that it is not up to the city to decide whether businesses such as the propane facility can be built near residential areas. The area was zoned for business use, he says.

Miller says it's up to the province's Technical Standards and Safety Authority (TSSA) to approve and regulate these facilities.

Some have described the aftermath as a war zone. On some homes, the windows have been blown in, while other homes have jagged fragments that still remain.

Debris litters streets throughout the area. Parts of the propane tanks that were once at the facility are now kilometres away.

Police have increased their presence in the area to prevent looting.

Residents who find pieces from the blast on their property are asked to contact police and avoid touching the debris, which will be considered evidence in the investigation.

Officials still don't know cause of the explosion. Anyone with information relating to the case is being asked to call police at 416-888-2222.

Sunrise Propane says it will give full co-operation to police.