An Associated Press journalist saw around 400 people gathered in at least two spots in the Cerro neighborhoods in Havana.
The mysterious ailment got its name because symptoms were first reported by officials at the U.S. embassy in Cuba in 2016.
Although first reported in the Cuban capital, the mysterious illness has been reported in many other countries, including China, Vietnam, Russia and Austria.
The recent grassroots protests in Cuba are directly responsive to the Cuban people's decades-long oppression at the behest of an evil, communist police state.
"I hold the government responsible for anything that may happen to me," Dina Stars told Spanish TV as she cut short her live interview.
Thousands took to the streets in downtown Havana, before reports emerged of internet and cell phone service being lost across Cuba.
Thousands protested in Havana, as well as San Antonio de los Baños and Palma Soriano, on July 11 to demand President Miguel Diaz-Canel step down.
The SS Cotopaxi's disappearance has become one of the famous stories associated with the legend of the Bermuda Triangle.
After Cuba opened up, hordes of travelers descended upon the famed capital, Havana - and many were disappointed. Cuba expert, Tony Perrottet tells us how to truly experience the city and its unique nostalgic tang.
Dozens of American diplomats complained of suffering from illnesses following mysterious sonic attacks.
Investigators are still in the process of identifying other victims and notifying next of kin.
Presidential Miguel Diaz-Canel faces no competition, and neither does the man running as his deputy, Salvador Valdés Mesa.
Staff sent to Cuba should have brain and hearing tests before they leave, officials now recommend.
A warning noted that the victims suffered ear complaints, hearing loss and dizziness.
The moves follow U.S. claims that its officials in Havana have suffered serious harm from "sonic attacks."
His black and white approach reflects antiquated, polarizing Cold War-era attitudes.
A Cuban state-owned agency wants to reopen a few of the once-popular inns, known as "posadas."
Regular citizens are largely unaffected by the shortfall as they tend to drive older cars that use regular fuel.
Market forces and economic needs may lead to further engagement, despite Republicans' criticism of Obama's diplomacy.