A 25-year-old Argentine fan in Sylhet's Shibganj "died of a heart attack" after celebrating the South American side's thrilling World Cup final triumph against France Sunday night.

Joybroto Bhattacharya, from Sunamganj's Chhatak, died early Monday while undergoing treatment at Sylhet MAG Osmani Medical College. He was a civil engineering graduate and worked at a private firm.

Citing Joybroto's sister, senior lawyer of Sylhet District Bar Mujibur Rahman, said: "Joybroto watched the match last night with his friends at a Shibganj mess. After Argentina beat France, he erupted in joy and came out on the street chanting slogans."

"At that time, Joybroto felt pain in his chest. As the pain became acute, his friends took him to MAG Osmani Medical College Hospital around 3am. An hour later Joybroto died."

Osmani Medical College Hospital Director Brigadier General Mahbubur Rahman Bhuiyan said Joybroto might have died of a heart attack. "But we are not yet sure of the cause of his death."

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Mohammad Ali Mahmud, officer in-charge of Kotwali Model Police Station, said: "MAG Osmani Medical College Hospital informed us of the death early Monday. Joybroto's body was handed over to his family at 10am."  

Argentine fans in Bangladesh erupted with screams as La Albiceleste defeated France 4-2 on penalties to claim a third World Cup title.

Read more: Argentine fans chanted “Bangladesh-er doa chai!” before last night’s Qatar World Cup final