"Apple has mostly stopped advertising on Twitter. Do they hate free speech in America?," Elon Musk said in a tweet, launching into a series of complaints against the iPhone maker.

A Twitter poll about mandatory masks sparked a heated debate in London, Ont., and prompted the mayor and city councillors to weigh in.

The man behind the account, Brian Baron, said he posted the tweet as a way to create a discussion and was trying to be more humorous than anything else. He said he didn't find Nenshi's comment particularly offensive.