The so-called rumors were related to China’s continuing stock market uncertainty, the recent industrial explosions in Tianjin and the military parade scheduled for Thursday to commemorate the 70th anniversary of the end of World War II, the ministry said. Xinhua, the state-run news agency, said Monday that the ministry’s actions were the core of a “special campaign” by the police. The moves are an indication of the political sensitivities that have been aggravated in recent weeks by several volatile issues, among which the most painful for Chinese leaders have been the slowing economy and the market collapse. Greece is holding elections Sept. 20 after Alexis Tsipras stepped down as prime minister, seeking a stronger mandate to implement austerity measures creditors demanded in return for a new bailout. 3 Ukraine violence: A grenade exploded outside Ukraine’s parliament during a nationalist protest Monday against a vote to give greater powers to separatist regions in the east, killing one police officer and injuring more than 100, the interior ministry said. The extent of damage from a massive explosion near the ancient Temple of Bel in Syria’s Palmyra is unclear, but it appears the structure is still standing despite an attempt by the Islamic State group to blow it up, a Syrian official said Monday.