This is pretty audacious whoever is committing these attacks on US diplomats:

The State Department is evacuating several Americans from China amid health concerns about mysterious symptoms arising after unusual noises detected by U.S. diplomats and their families working in the consulate in Guangzhou. U.S. DEPT OF STATE

The State Department is evacuating several Americans from China amid health concerns about mysterious symptoms arising after unusual noises detected by U.S. diplomats and their families working in the consulate in Guangzhou.

After initial screenings by a medical team dispatched last month when the first incident was reported, the State Department has sent “a number” of affected people to the United States for further evaluation, State Department spokeswoman Heather Nauert said.

The evacuation was the first sign that the unexplained ailments previously known to have afflicted only one U.S. government employee in China has now broadened and threatens to become a full-blown health crisis like the one that affected at least 24 U.S. diplomats and their families in Cuba.

The latest round of evacuations began Wednesday in China, which was still Tuesday in the United States. More diplomats and their dependents are expected to be sent home in coming days.  [Stars & Stripes]

You can read more at the link, but it is believed that the sonic attacks in Cuba were caused possibly by a flawed spying device.  So whatever the spying device being used in Cuba was maybe it came from China and this same device malfunctioned while spying on US diplomats in Guangzhou as well?