The weekend was a sad time for some fans of the recently released hit mobile phone game "Pokémon GO." Connectivity issues were experienced as massive numbers of users tried to connect to the server. This prompted the title's creators to issue a statement of apology.

According to NME News, the creators said in a statement: "Due to the incredible number of Pokémon Go downloads, some Trainers are experiencing server connectivity issues. Don't worry, our team is on it!"

While hacking group PoodleCorp has emerged as the team responsible for the massive Denial of Service attack on Saturday, hacking collective OurMine has claimed responsibility for the game's offline note on Sunday.

In an email to PC Mag, a representative for OurMine said, "We wrote we will stop the attack if any [Niantic] staff talked with us, because we will teach them how to protect their servers," adding that the team is "just trying to protect [companies'] servers."

OurMine retains its stand that it has to keep doing its job of putting games offline and even going as far as infiltrating celebrity accounts and pages, including that of Mark Zuckerberg, so other hackers won't have to do it.

Meanwhile, it is expected that PoodleCorp will once again break through the "Pokémon GO" system on August 1. Through a post on Twitter, the team hinted of a possible attack. "August 1 #PoodleCorp #PokemonGo," PoodleCorp wrote.

Ever since the game was released earlier this month, it has smashed records and also led many Pokémon trainers to abandon their daily lives for the sake of capturing Pokémon. While the United States is already swarming with "Pokémon GO" fanatics, the game has yet to roll out in other countries around the globe.

It is unclear if Niantic has responded to OurMine's call of communicating for the title's improved security but fans can expect more server issues in the future unless the hackers get what they want or the developer decides to strengthen its security belt.

"Pokémon GO" is available for Android and iOS mobile phones.