Parts of Twitter became inaccessible a day before thousands of fans are expected to start tweeting about the Olympic games. The Twitter.com site was unreachable for almost an hour and continued to suffer intermittent faults thereafter.
In a status message posted after the fault was cleared, the micro-blogging service apologised for the problems. It said it was caused by a simultaneous failure in its main data centre and the one supposed to provide back-up. Twitter said it was investing heavily in its data centres to avoid such falling victim to another "infrastructural double-whammy".
During the interruption, Twitter was still accessible via its mobile site and other applications. Twitter is expected to be one of the main social networks to be used by both fans and athletes during the Games