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Need To Know > World > Dancer, 25, dies in ICU after sofa waterproofing sparks deadly blast in new flat
A 25-year-old samba dancer died in intensive care 15 days after an explosion tore through her new flat during a sofa waterproofing service, killing the worker carrying out the job too.
World

Dancer, 25, dies in ICU after sofa waterproofing sparks deadly blast in new flat

William McGee
Last updated: June 18, 2026 1:58 pm
William McGee Published June 18, 2026
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Marielly da Silva de Oliveira. (Picture: Jam Press)
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A 25-year-old dancer has died in intensive care 15 days after being severely injured in an explosion in her new flat.

Marielly da Silva de Oliveira was among six people hurt in the blast and subsequent fire on 28 May.

The accident happened during a sofa waterproofing service being carried out in the apartment, which had been purchased by Marielly shortly before.

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The explosion destroyed the flat, damaged other units in the building, and led to the fourth floor being sealed off by civil defence authorities in Niterói, Brazil.

Marielly, a passista (parade dancer) with the Acadêmicos do Cubango samba school, was taken to hospital in a critical condition.

She remained in intensive care until her death, which was announced by Acadêmicos do Cubango on Friday (12 Jun).

A 25-year-old samba dancer died in intensive care 15 days after an explosion tore through her new flat during a sofa waterproofing service, killing the worker carrying out the job too.
The scene following the blast. (Picture: Jam Press)

Paulo Roberto Mattos da Silva, who was carrying out the waterproofing work, also died, aged 62, on Friday.

His co-worker, 55-year-old Bianca Dias de Lima, remains in hospital in a critical condition.

The remaining injured, Sandro José da Silva and Jorge Alejandro Canales Alarcon, have been treated and discharged.

Authorities are still investigating the incident, as reported by Need To Know.

Initial findings suggest the explosion occurred during the application of a product used to waterproof upholstery, with investigators looking at whether the switching on of an electrical device may have triggered it.

In Brazil, samba schools like Acadêmicos do Cubango are supported by passionate local communities in much the same way as football clubs.

A 25-year-old samba dancer died in intensive care 15 days after an explosion tore through her new flat during a sofa waterproofing service, killing the worker carrying out the job too.
Marielly da Silva de Oliveira. (Picture: Jam Press)

Supporters often strongly identify with a single school, contributing time, money and involvement throughout the year.

They compete against each other in organised Carnival parades, judged and ranked in a league-style system with promotion and relegation between divisions.

Acadêmicos do Cubango paid tribute to Marielly online, saying: “In this moment of grief, we extend our deepest condolences to her family, friends, and all those who had the privilege of sharing her joy, dedication, and love for samba.”

READ MORE: Youth player, 14, dies after powerful shot to the chest during football game

A 25-year-old samba dancer died in intensive care 15 days after an explosion tore through her new flat during a sofa waterproofing service, killing the worker carrying out the job too.
Marielly da Silva de Oliveira. (Picture: Jam Press)
A 25-year-old samba dancer died in intensive care 15 days after an explosion tore through her new flat during a sofa waterproofing service, killing the worker carrying out the job too.
The scene following the blast. (Picture: Jam Press)

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