WASHINGTON (AP) — The United States has pulled out two more of its workers from its embassy in Cuba and is testing them for possible brain injury, three U.S. officials told The Associated Press on Friday, amid concerns they may have been affected by mysterious health incidents harming U.S. diplomats in Cuba and China.

The two individuals are considered "potentially new cases" but have not yet been "medically confirmed," a State Department official said. Two other officials said the individuals have been brought for testing to the University of Pennsylvania, where doctors have been evaluating,...