Some Pokemon have been causing problems at the Knoxville Police headquarters.

KPD tweeted this morning about its investigators "interrogating" Pikachu after it was found in a secure part of the safety building.

Then, KPD said its officers had to escort another Pokemon out of its main headquarters because everyone was trying to find him inside the secure areas.

Since the launch of Pokemon Go, the game quickly grabbed the number one spot in the Apple app store. It encourages users to walk around to search for and 'catch' Pokemon that appear on their phone.

Local authorities have had to remind folks they can't be in public parks after hours to play the game.

But it's also led to a lot of fun, with companies and organizations, like KPD, joining in on the Pokemon craze.