A helicopter belonging to Leicester City owner Vichai Srivaddhanaprabha burst into flames after it crashed yards away from the King Power stadium, moments after taking off from the pitch on Saturday night.
The condition of billionaire Mr Srivaddhanaprabha is not known, but he is believed to have been on board according to BT Sports pundits in the stadium who watched the helicopter take off.
A source close to the Srivaddhanaprabha family told the BBC the owner was on board, according to reports.
Witnesses reported seeing the Augusta Westland AW-169 aircraft suffering engine trouble and spinning out of control shortly after it took off from the centre-circle.
Early on Sunday fans began to arrive to the stadium with flowers, although it is not yet clear who was travelling in the helicopter at the time of the crash.
Mr Srivaddhanaprabha made his money in retail in Thailand and his King Power duty-free shops are in every airport in the Asian country.
The sound of the helicopter crash could be heard on a BT Sport post-match broadcast and goalkeeper Kasper Schmeichel is said to have witnessed the crash and broke down in tears.