Some of those being asked to return were accidentally fired. Others were let go before management realized their work and experience might be necessary to build the new features Musk envisions, the report said, citing people familiar with the moves. Twitter recently laid off 50 percent of its employees, including employees in the company’s trust and security team. Twitter layoffs hit Canadian offices, involving at least two of the country’s top executives Tweets from the social media company’s staff said teams responsible for communications, content curation, human rights and machine learning ethics were among those destroyed, as were some product and engineering teams. Twitter on Saturday updated its app on Apple’s App Store to start charging $8 for the coveted blue checkmarks, in Musk’s first major overhaul of the social media platform. Twitter did not immediately respond to Reuters’ request for comment. This content appears as provided to The Globe by the original wire service. It has not been edited by Globe staff.