Elon Musk apologized for 'incorrectly low' Tesla severance packages

• Elon Musk apologized Wednesday to laid-off Tesla employees for incorrect severance packages.

• The rare apology came after the EV maker said at least 10% of its workforce was being laid off.

• Some workers previously told Business Insider they were offered two months' pay as severance.

Elon Musk apologized in an email to some laid-off Tesla employees after their severance packages were found to be "incorrectly low," according to a screenshot of the email viewed by Business Insider.

"As we reorganize Tesla it has come to my attention that some severance packages are incorrectly low," Musk said in the brief email sent Wednesday. "My apologies for this mistake. It is being corrected immediately."

The email was first reported by CNBC.

Some employees were offered two months of severance, five laid-off workers previously told BI. Other workers told BI that as of Wednesday night, they'd yet to receive any information about severance packages.

Sixty days' pay is the minimum that companies with more than 100 employees must give laid-off workers if there's no 60-day notice period before mass job cuts, according to the Worker Adjustment and Retraining Notification Act.