Rockstar Games, the company behind video game Grand Theft Auto V, has apologised to its customers for problems they have experienced following the launch yesterday of the online version of the game.

Users of GTA Online have taken to social media sites and gaming forums in droves, to complain about a range of problems with the game. It is reported the problems are as a result of a technical issue caused by the large numbers of people trying to log on and play the game, following its online launch.

On its support page, Rockstar Games apologised for the inconvenience caused, and thanked customers for their patience. It said it is continuing to look at the issues and is working around the clock on resolving them as quickly as possible.

Among the problems experienced by customers were an inability to load, server error messages and the freezing of the game. Last week Rockstar had warned that the popularity of the game since its launch might mean that the servers hosting the online version would not be able to handle the traffic.

GTAV became the fastest-selling entertainment product of all time earlier this month, selling more than $1 billion worth of copies in just three days following its launch.