LONDON – People around the world briefly experienced problems accessing Twitter on Thursday, a day before the 2012 Olympic Games are expected to cause a spike in use of the micro-blogging site.

About three hours after the San Francisco-based company first acknowledged the problem by saying its engineers were "currently working to resolve the issue," Twitter said in a statement that the "site issue" had been resolved.

It did not go into further detail on what caused the glitch – the second time in just over a month that the site has been hit by problems.