Wondering why you couldn't “catch ‘em all” Sunday? The hacking collective OurMine has claimed credit for attacking the "Pokemon Go" servers.

Hackers reportedly hit "Pokemon Go" login servers with a distributed denial of service (DDoS) attack that left players frustrated and unable to log in to the game. The group, whose IP address has reportedly been tracked to Saudi Arabia, posted a statement on their website saying, “No one will be able to play this game till 'Pokemon Go' contact us  on our website to teach them how to protect it.” The statement was posted prior to the attack.

In another statement posted after the attack began, the group once again urged the "Pokemon Go" staff to contact the collective to resolve the issue.

OurMine gained notoriety for hacking social media accounts of prominent personalities, including Facebook’s CEO Mark Zuckerberg, Google’s CEO Sundar Pichai and Twitter’s CEO Jack Dorsey, exposing their weak passwords and their accounts’ poor security.

The group uses these hacks to advertise its “security services.” Speaking to TechCrunch, a member of OurMine insisted that it’s just promoting stronger security, claiming that if the group didn’t hack famous accounts someone else would. OurMine charges from $30 to $5,000 for its services.

Meanwhile, as "Pokemon Go" expands to more countries, several users are complaining of bugs and glitches in the app. However, the app’s official twitter page claimed that the server problems have been identified and that the team was working on fixing the bugs.