China issues warning for its firms, people in US as trade war deepens

China's foreign ministry has warned companies operating in the United States they could face harassment from U.S. law enforcement agencies, state media reported on Tuesday. The tourism ministry also warned Chinese tourists of potential threats such as robbery and gun violence while visiting the United States, state media said. They are the latest warnings issued by Beijing amid a bitter trade war and other tension between the two countries. 

(With inputs from agencies.)