Recent incidents have seen devastating warehouse fires unfold in both Ontario and California, leading authorities to suspect arson. In Ontario, a massive fire tore through a Kimberly-Clark warehouse, prompting a six-alarm response and resulting in the detention of an employee on suspicion of arson. Firefighters faced significant challenges, including a roof collapse, as they battled the blaze that engaged over 100 personnel. Meanwhile, a separate but similar situation occurred at a California warehouse, where a six-alarm fire also raised alarms about potential arson. The police have apprehended a suspect, linking these incidents to a broader pattern of warehouse fires that has raised public concern.