10 people were displaced following a fire in the 900 Block of Campbell Avenue on Monday afternoon.
Windsor Fire and Rescue Services were called around 5:30 p.m., with 12 firetrucks responding to the upgraded call with assistance from EMS, Windsor police, Enbridge, ENWIN and Transit Windsor.
Investigators say the fire originated in an abandoned 2-storey house and spread to two adjacent houses.
A total of 10 people were displaced, three from one home and seven from another.
The fire caused a total of $850,000 in damages to all three structures. No injuries were reported.
The fire investigator was attending the scene and Windsor police were holding the scene overnight until the arson unit arrived.
Fire officials asked the public to call Crime Stoppers if they had any information related to the blaze.