Early in 2008, the district government of Jiading, Shanghai invited Ai Weiwei to build a studio in Malu Township, as a part of the local government's efforts in developing its cultural assets. By August 2010, the Ai Weiwei Shanghai Studio completed all of its construction work. In October 2010, the Shanghai government declared the Ai Weiwei Shanghai Studio an illegal construction, and it was subjected to demolition. On 7 November 2010, when Ai Weiwei was placed under house arrest by public security in Beijing, over 1,000 netizens attended the "River Crab Feast" at the Shanghai Studio. On 11 January 2011, the Shanghai city government forcibly demolished the Ai Weiwei Studio within a day, without any prior notice.