http://www.pcgamer.com/pubg-exec-contemplating-further-action-over-fortnite-battle-royale-similarities/

After describing themselves as "huge fans of the Battle Royale genre", Epic Games unveiled Fortnite Battle Royale last week—a new free-of-charge mode that'll drop 100 players into "one giant map" in a bid to become the last person standing. It's due to launch this coming Tuesday, September 26. 

Now, it appears Bluehole has taken issue with perceived similarities between Epic's incoming mode, and its own similarly structured megahit PlayerUnknown's Battlegrounds.