The United States has ordered China to close its consulate in Houston in what a Chinese official called an outrageous and unjustified move that will sabotage relations between the two countries.
Foreign Ministry spokesman Wang Wenbin condemned the action, which comes at a time of rising tensions between the world's two largest economies. He warned of firm countermeasures if the US does not reverse its decision.
"The unilateral closure of China's consulate general in Houston within a short period of time is an unprecedented escalation of its recent actions against China," Wang said at a daily news briefing.
Besides its embassy in Beijing, the US has five consulates in mainland China, according to its website. They are in Shanghai, Guangzhou, Chengdu, Wuhan and Shenyang.
The US said in a brief statement that the consulate was ordered closed "to protect American intellectual property and American's private information." It did not provide any details.