London Daily

Focus on the big picture.
Saturday, Aug 29, 2026

‘Havana syndrome’ unlikely caused by hostile foreign power, CIA says

‘Havana syndrome’ unlikely caused by hostile foreign power, CIA says

Investigation finds majority of cases probably linked to pre-existing medical conditions, environmental factors or stress
An initial CIA investigation into the mysterious set of symptoms known as Havana syndrome has found that it is unlikely to be the result of a worldwide campaign of attacks by a foreign power against US diplomats and spies.

However, two dozen cases, including some of those originally afflicted in Havana in 2016, could not be explained and would be further studied for evidence of a possible attack, according to a senior CIA official who briefed the US press.

“While we have reached some significant interim findings, we are not done,” the CIA director, Williams Burns, said in a statement. “We will continue the mission to investigate these incidents and provide access to world-class care for those who need it.”

Since the original outbreak of the symptoms, which include hearing strange sounds, dizziness, loss of balance, nausea and memory loss, more than 1,000 cases have been studied around the world.

The interim findings of a CIA investigation have found that the majority of cases could probably be attributed to a pre-existing medical condition, or environmental factors, or stress, the senior official said.

The defence department and an independent panel of experts are conducting their own investigations which have yet to publish reports.

The CIA finding suggests that after the initial cases were reported, hundreds of US embassy and intelligence agency employees started to wonder whether their symptoms could be related. Government agencies asked for anyone who thought they might be affected to file a report.

Marc Polymeropoulos, a former senior CIA official who has suffered severe symptoms since a visit to Moscow in 2017, said the interim findings did not resolve anything.

“They seem to have solved a problem they created with their mass data call – but core cases remain. So [are] we back to square one?” he asked on Twitter.

A Havana syndrome victims support group said in a statement: “The decision to release the report now and with this particular set of ‘findings’ seems a breach of faith, and an undermining of the intent of Congress and the president to stand with us and reach a government-wide consensus as to what is behind this,” a Havana syndrome victims group said in a statement.

“This report was neither cleared nor coordinated through the interagency and must stand as the assessment of one agency [CIA] alone.”

The secretary of state, Tony Blinken, said that investigations would continue.

“We are going to continue to do everything we can, with all the resources we can bring to bear, to understand, again, what happened, why, and who might be responsible,” Blinken said at a press conference in Berlin. “And we are leaving no stone unturned.”
Newsletter

Related Articles

0:00
0:00
Close
Police Intensify Investigation Into Organised Crime-Linked Violence in Middlesbrough
UK Small Businesses Face Continued Revenue and Tax Pressures, Federation Says
M&G Real Estate Buys West Sussex Affordable Housing Portfolio for £29 Million
Royal Navy Warship HMS Tamar Visits Cambodia for Regional Security Engagement
UK Government Brings Forward Benefit Payments Ahead of August Bank Holiday
Four Men Plead Guilty to Arson Attack on Jewish Community Ambulances in North London
Ofgem Raises Great Britain’s Household Energy Price Cap by Four Percent From October
UK Government Rejects Green Party Call for Artificial Intelligence Datacentre Moratorium
Millions of UK Benefit Recipients Receive Payments Early Ahead of August Bank Holiday
UK Prime Minister Meets Northern Ireland Leaders in Belfast Over Budget Crisis
Crypto Tax Gains Reach One Point Three Eight Billion Pounds Among UK Investors, HMRC Data Shows
UK Corporate Confidence Rises to Highest Level Since March, Lloyds Survey Shows
Mike Ashley Attacks UK Government Business Rates and Cost-of-Living Policies
Scottish Universities Face Two Hundred Million Pound Annual Funding Gap, Report Warns
Entertainment Figures Urge UK Government to Protect People From AI Voice Cloning
Manchester Airports Group Confirms Customer Data Breached in Cyberattack
Seven Charged Over Vandalism at Donald Trump’s Turnberry Golf Resort in Scotland
Nearly 23,000 UK Households Expected to Move Home on Busiest Day of 2026
UK Benefit Payments to Arrive Early Ahead of August Bank Holiday
Reform UK Pledges to Replace GDPR and Cut Tax Administration Red Tape
Andy Burnham Launches Work Experience Plan for One Million Young People Outside Education or Work
Andy Burnham Faces Labour Backlash After Dropping Support for Political Donations Cap
Andy Burnham Announces UK-Wide Summit With Leaders of Scotland, Wales and Northern Ireland
Met Office Warns of Heavy Rain and Flood Risk Across England and Wales After Summer Heat
Bank of England Warns AI Adoption Could Reduce Demand for Automatable Jobs
UK Confirms National Salmonella Outbreak With More Than 200 Cases
UK Airports Handle Record 81 Million Passengers Despite Middle East Disruption
Ofgem Raises UK Energy Price Cap by Four Percent to £1,723
Cyber Attack Hits Customer Data Systems at Manchester, Stansted and East Midlands Airports
TSA Unveils Major Airport-Security Overhaul as It Drops Gold+ Privatization Plan
CIA Chief Warned Russia Against Attacking NATO in Secret Moscow Mission
Raheem Sterling Charged With Dangerous Driving After Lamborghini Crash
The Secret Dolly Parton Kept Until Her Death: "She Was Much Sicker Than She Let On"
Middlesbrough House Fire Kills Woman and Seven-Year-Old Girl
Prince Harry and Meghan Markle Return to UK Amid Renewed Media Attention
Raheem Sterling Charged With Dangerous Driving After London Collision
Greenpeace Threatens Legal Action Over Crown Estate Offshore Wind Leasing
Nvidia Revenue Surges to Ninety-Six Point Two Billion Dollars on Artificial Intelligence Demand
Meta Agrees to Global Youth Safety Changes Following Multi-State Legal Settlement
UK Government Plans Autumn Summit With Scottish, Welsh and Northern Irish Leaders
CMA Caps Veterinary Prescription Fees at Twenty-One Pounds
Thames Water Pilot Records Forever Chemicals at Thirteen Times the Legal Limit
Kent Meningitis Outbreak Reaches Thirty-Four Confirmed Cases
Forty Children Missing From UK Asylum Accommodation Remain Unaccounted For
UK Court Upholds VAT on Private School Fees
US Designates Palestine Action as Foreign Terrorist Organization
UK Approves Massive New Chinese Embassy Complex in London Amid Security Concerns
Prime Minister Andy Burnham Visits Kyiv and Offers Cruise Missile Designs to Ukraine
Glacier Collapse, Not Earthquake, Triggered Deadly Nepal-Tibet Flood
Andy Burnham Drops Plan to Cap Political Donations
×