The country’s Ministry of Culture and Tourism cited recent “frequent” shootings, robbery and theft as the reason for its alert, the official Xinhua News Agency said on Tuesday. It didn’t provide any statistics or further details.

Asked if the move was part of the protracted trade dispute, Foreign Ministry spokesman Geng Shuang told reporters in Beijing it was a response to “current circumstances.”

Related: Chinese tourism to U.S. drops for 1st time in 15 years