Twitter Inc temporarily closed its offices on Friday after telling employees they would be informed by email later in the day about whether they are being laid off.

The move follows a week of uncertainty about the company’s future under new owner Elon Musk, reports Reuters.

The social media company said in an email to staff it would tell them by 9 a.m. Pacific time on Friday (12 p.m. EDT/1600 GMT) about staff cuts.

“In an effort to place Twitter on a healthy path, we will go through the difficult process of reducing our global workforce on Friday,” said the email sent on Thursday, seen by Reuters.

Musk, the world’s richest person, is looking to cut around 3,700 Twitter staff, or about half the workforce, as he seeks to slash costs and impose a demanding new work ethic, according to internal plans reviewed by Reuters this week.

The company’s content moderation team is expected to be a target of the cuts, tweets from Twitter employees suggested on Friday. Musk has promised to restore free speech while preventing it from descending into a “hellscape”.

Twitter did not immediately respond to a request for comment.

Twitter employees vented their frustrations about the layoffs on the social network, using the hashtag #OneTeam.