Leader of Twitter on 'personal' China visit

Twitter Inc, one of world's most popular social networking service providers, took its first steps into China on Monday, with the company's chief executive officer starting a three-day visit - his first - to the world's second-largest economy.

Dick Costolo, Twitter's CEO, arrived at Shanghai Pudong International Airport on Monday morning.

His visit will take place only in China's business hub; Beijing will not be on the itinerary this time.