Forums are ablaze with the news that those who pre-ordered copies of Grand Theft Auto V through Amazon have received them earlier than the official release.

It's not unheard of for the Goliath online retailer to send games early to ensure delivery by release date but Rockstar will be "investigating"...

Rockstar Respond to Early GTA V Release

GTA V is due for release tomorrow and many of you will eager to get your hands on a copy. Forums and social networking sites have had a huge number of posts over the weekend from people receiving early copies. 

People are posting screenshots, videos, and spoilers. If you're planning on picking the game up tomorrow and don't want to ruin the surprise,it's probably best to stay away from GTA V posts on sites like neogaf and reddit.

Rockstar have released a statement to Games Industry regarding the early release and they don't sound too impressed: "We are in the process of investigating early 'sales' to determine how and why that is occurring."

Grand Theft Auto V is released tomorrow, September 17 for Xbox 360 and PS3. 

Did you get an early copy? Do you think Rockstar have a right to be less than impressed by Amazon?