In a statement Twitter said, the official Twitter account of the Olympics and the International Olympic Committee’s (IOC) media Twitter account had been hacked and has been temporarily locked.

Twitter’s statement also mentioned that these accounts were hacked through a third-party platform, without giving further details.

“As soon as we were made aware of the issue, we locked the compromised accounts and are working closely with our partners to restore them,” said Twitter’s spokesperson.

In a seperate statement, the IOC said it was investigating the potential breach.

On Saturday, Twitter had also said Spanish soccer club FC Barcelona’s account was hacked.

“FC Barcelona will conduct a cybersecurity audit and will review all protocols and links with third party tools, in order to avoid such incidents,” said the soccer club in a tweet after the hack.

Last month, ahead of the Super Bowl, the Twitter accounts of several U.S. National Football League (NFL) teams, including the San Francisco 49ers and Kansas City Chiefs, were hacked.