Elon Musk emailed Twitter staff at 2:30 a.m. telling them the 'office is not optional,' report says

• Elon Musk emailed Twitter staff Wednesday about remote working, Platformer's Zoë Schiffer tweeted.

• The Twitter owner told them in an email sent at 2:30 a.m. that the "office is not optional."

• Musk noted in the email that the office in San Francisco was half empty Tuesday, Schiffer tweeted.

Elon Musk reportedly emailed Twitter staff early on Wednesday to remind them about the company's remote-working policy.

Zoë Schiffer, a managing editor at Platformer, tweeted: "Elon Musk sent Twitter employees an email at 2:30am saying the 'office is not optional.'"

The Twitter owner said in his memo that the company's headquarters in San Francisco "was half empty yesterday," per Schiffer's tweet.

However, Musk has fired thousands of employees since taking control of the company in late October with the total now thought to be about 1,300, per CNBC.

Twitter didn't respond to a request for comment from Insider; the company laid off its communications team last week and its press office now automatically responds to emails with a poop emoji.