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Automaker Audi and General Mills, the titan of packaged food behind Cheerios, which also makes Pillsbury, Betty Crocker and Häagen-Dazs, have joined a growing list of companies that are phasing out their ad spend on Twitter after the acquisition of Elon Musk.

Also, Oreo maker Mondelez International and pharmaceutical giant Pfizer have both paused their spending on Twitter ads, according to a Wall Street Journal report citing people familiar with the case.