Chinese police officers form up in front of the United States Consulate in Chengdu in southwestern China's Sichuan province Saturday, July 25, 2020. (AP Photo/Ng Han Guan)BEIJING – China’s foreign ministry complained Saturday that American law enforcement officials improperly entered its consulate in Houston, which was ordered to close in an escalating diplomatic feud. The Trump administration ordered the Houston consulate closed this week, saying Chinese agents tried to steal medical and other research in Texas. “As for the U.S. side’s forcible entry into the premises of the Chinese Consulate General in Houston, China expresses strong dissatisfaction and resolute opposition,” said a foreign ministry statement. “China will make a proper and necessary response to this.”The statement said that the Houston consulate was Chinese property, and that under diplomatic treaties American officials had no right to enter.