 An investigator with the Ontario Fire Marshal's Office stated that it could take months before the cause of the explosions could be determined.Ontario Premier Dalton McGuinty also said that the province was willing to provide financial aid to residents whose homes were damaged by the explosions.On August 4, 2010, the Toronto Star reported that the massive Sunrise propane explosion in 2008 was caused by an illegal "tank-to-tank transfer" along with a gas hose leak.