At 4:00 pm on September 28, 2012, China's official news agency Xinhua published a report stating: "BO XILAI EXPELLED FROM CPC, PUBLIC OFFICE, TO FACE JUSTICE" (Chinese version)
Within hours after the announcement, Sina and Tencent stopped censoring searches for both "Bo Xilai" (薄熙来) and his son "Bo Guagua" (薄瓜瓜).
Both of those terms had been censored since at least 2011.