Sec. of State Rex Tillerson on Sunday said that he is considering shutting down the USA embassy in Havana, Cuba over a spate of mysterious sonic attacks aimed at American diplomats stationed there.
The sudden review comes after more than 20 US government employees at the embassy have suffered mysterious health problems, which American officials have blamed on a potential secret sonic device in the build. "It's a very serious issue with respect to the harm that certain individuals have suffered".
At least 21 U.S. Foreign Service officers have suffered a mixture of concussions, loss of hearing, blurry vision and brain trauma after targeted by sonic blasts at hotels where they are staying in the Cuban capital. Some victims reported hearing loud and mysterious vibrations and hinted at a possible "sonic attack".
Cuba has denied involvement. Its government had no immediate response to Tillerson's comments.
Washington says at least 16 employees at its Havana embassy - which fully reopened in 2015 after a half-century breakdown in diplomatic relations - were injured in a series of incidents that began past year.
But President Trump has said he intends to cancel Obama's new policies with the communist country as punishment for Cuba failing to improve its human rights records in the past two years.