April 6 (Reuters) - X Corp, formerly Twitter, has been

"forced by court decisions" to block certain popular accounts in

Brazil and is prohibited from giving details of the order, the

company said on Saturday.

X owner Elon Musk said in a post on the platform, that this

order could lead to a total loss of revenue and shut down of the

offices in Brazil, promising that he would legally challenge it

where possible.

The social medial company said it is unaware why the

blocking orders have been issued and is barred from giving

details of the impacted accounts, adding that it is threatened

with daily fines if it fails to comply.

"This judge has applied massive fines, threatened to arrest

our employees and cut off access to X in Brazil," Musk said when

referring to a user's post on Supreme Court Justice Alexandre de

Moraes' "free speech crackdown."

Last year, Moraes also ordered an investigation into

executives at social messaging platform Telegram and Alphabet's

Google, who were in charge of a campaign criticizing a

proposed internet regulation bill.

The bill put the onus on internet companies, search engines

and social messaging services to find and report illegal

material, instead of leaving it to the courts, and charge hefty

fines for failures to do so.