Update as probe into boy who died in River Thames continues

An inquest was opened into the death of Baltazar Cabral Lay da Costa who died on May 27, 2026, after getting into difficulty in the water while with friends near to Donnington Bridge.

At Oxfordshire Coroner’s Court today (Wednesday, June 10) it was revealed that the investigation into the 14-year-old’s death is ongoing and that a cause has not yet been determined.

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Born on March 17, 2012, in Timor-Leste (also called East Timor), Baltazar resided in Stanford in the Vale.

His father is Pedro Goncalves, a hotel porter, and his mother is Manuela da Costa, who identified the body at the John Radcliffe Hospital.

The police scene at Donnington Bridge on Wednesday, May 27 (Image: Zoe Broughton)

Coroner Darren Michael Salter said: “It is reported he got into difficulty while swimming with friends. His cause of death remains under investigation.”

At the time, one eyewitness told this paper that Baltazar was “not alone” in his final moments as people attempted to rescue him.

She said: “I wanted to send my deepest and most heartfelt condolences to the family during this unimaginably difficult time.

“I was there that evening, and I want you to know from the bottom of my heart that he was not alone.

Donnington Bridge pictured from above. (Image: Kevin Brackett)

“Several of us who were present did absolutely everything humanly possible to find him and help him. We didn’t leave his side for a single moment.

“We are holding you in our thoughts and sending you all the love and support in the world. May your sweet angel rest in peace.”

His death was certified at 7.02pm on May 27 by Dr Mark Hodkinson, an air ambulance clinician, and the date for the resumed inquest is set for September 21.

A person swimming in a lake (Image: Getty Images)

Baltazar’s death was one-of 17 open-water tragedies that happened in the UK during the recent heatwave.

These sparked warnings about swimming in rivers and lakes from politicians and emergency services, with advice including not to jump from height as there may be unseen hazards and to take care when swimming as depths can vary.

A spokesperson for Thames Valley Police said: “Sadly, there have been several water-related fatalities across the UK in recent weeks.

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“In many cases, cold water shock – a sudden and dangerous response to entering cold water – has been a contributing factor.

“Even during hot weather, river temperatures can remain dangerously low and pose a serious risk to life.”

The force recommended that people enter the water slowly to allow your body to adjust to the temperature and to always stay within your capabilities and avoid taking unnecessary risks.

In addition, the force advised you should keep an eye on friends, family, and others around you.