Some Twitter staff return to offices in New York, San Francisco

FILE PHOTO: A Twitter logo is seen outside the company headquarters in San Francisco, California, U.S., January 11, 2021. REUTERS/Stephen Lam

NEW YORK (Reuters) - After more than 16 months of working from home, some Twitter Inc employees in San Francisco and New York returned to the office on Monday as the company reopened its corporate campuses at 50% capacity in the two cities.

With COVID-19 vaccination rates on the rise, major U.S. tech companies are diverging on how and when to reopen their offices. Alphabet Inc's Google announced employees can voluntarily return to the office starting in late July, while Apple expects employees to work from the office three days per week starting in early September.