This article is more than 2 years old

This article is more than 2 years old

Cuba released details on Sunday on the latest mysterious health incident involving a US diplomat in the country, saying Cuban officials learned of the episode late last month when the US said an embassy official felt ill after hearing “undefined sounds” in her home in Havana.

Cuba calls on US and Canada to investigate 'sonic attack' claims Read more

A statement released by Cuba’s foreign ministry said US officials reported on 29 May that a female embassy official reported “health symptoms” after hearing the sounds in her home two days earlier.

Cuba said it sent investigators to the home who found no potential source of a sound and were not granted access to the official.

US officials said on Friday they had pulled two workers from Cuba and were testing them for possible brain injury. There was no immediate explanation of why the Cuban statement referred to only one official.

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 had been brought for testing to the University of Pennsylvania, where doctors have been evaluating, treating and studying Americans affected in Cuba last year as well as almost 10 new possible cases from a US consulate in China.

Sign up to receive the top US stories every morning

The officials were not authorized to comment publicly and requested anonymity.

If confirmed by doctors to have the same condition, the two individuals would be the 25th and 26th confirmed patients from the bizarre incidents in Cuba that were first disclosed last year and have been deemed “specific attacks” by the US government.

The US has said it does not know who is behind the incidents, but has argued Cuba is responsible for protecting all diplomats on its soil. Cuba has denied any involvement in or knowledge of what may have caused the injuries.

Fresh row over mysterious sickness affecting US diplomats in Cuba Read more

“Cuba has publicly and officially reiterated its willingness to cooperate seriously in the joint search for answers, clarity and the solution of the alleged facts,” the Cuban statement said on Sunday.

“The ministry of foreign relations reiterates that no evidence of the alleged incidents has been presented, and maintains its unwavering commitment to cooperate with US authorities.”

The US has being issuing health alerts to Americans in China after a worker at the US consulate in Guangzhou reported symptoms and strange sounds and was flown to the US.

That worker was then medically confirmed to have “suffered a medical incident consistent with what other US government personnel experienced in Havana, Cuba”, the state department has said.