Man arrested in connection with fatal fire in Oshawa

Police east of Toronto say a deadly apartment fire is now being treated as a homicide following the death of an elderly woman.

Durham Regional Police say they were called to the blaze early Sunday evening and found the 83-year-old woman inside.

Her name has not yet been released.

Police say they've arrested a 56-year-old man in connection with the case, but have not announced any charges against him.

It's not known if he had a prior relationship with the victim.

Police say their investigation into the region's fifth homicide of the year remains open.