Wednesday’s announcement comes just two weeks after the social media company reopened its offices to workers.
“After careful consideration of updated CDC guidelines, and in light of current conditions, Twitter has made a decision to close our open offices in New York and San Francisco as well as to suspend future office reopens, with immediate effect. A Twitter spokesperson said in a statement Wednesday.
The company added that it continues to closely monitor local conditions and make necessary changes that “put the health and safety of our Tweeps first.”
Twitter is the latest Bay Area company to delay reopening or close its offices due to the delta variant.
Earlier Wednesday, Google said it would delay the return of offices until October. One month later than its original September date.