In a letter to the Ukrainian National Olympic Committee revealed on Thursday, Bach said Ukraine's efforts in "pressuring" other countries to boycott the 2024 Games was "extremely regrettable".
Tokyo prosecutors declined to comment on the reports, but local media published photos of police raiding the home of Yasuo Mori, who ran test events for the pandemic-postponed Summer Games held in 2021.
The Phrygian cap, the symbol of the French republic but wearing sneakers as a nod to the present, was unveiled on Monday as the mascot for the 2024 Paris Olympics.
Tokyo Games: Neeraj Chopra made history on Saturday, winning India's first-ever Olympic gold medal in athletics. He bagged gold in the men's javelin throw final.
India vs Argentina women's hockey semi-final match Highlights: Argentina captain Noel Barrionuevo scored a brace as Indian women's hockey team's suffered a heartbreaking loss in the semis
Beijing Winter Olympic Games: Dinigeer Yilamujiang, a 20-year-old cross-country skier, trained for years to fulfil every child's dream to star at the event
China on Monday cancelled plans to sell tickets to the public for the Winter Olympics in Beijing, allowing only invitees to view the action as part of strict virus control measures.
The 31-year-old Arif Khan is the first Indian athlete to qualify for two events at the Winter Olympic Games, scheduled to be held in Beijing from February 4.
Australia will not send officials to the upcoming winter Olympics in Beijing, Prime Minister Scott Morrison said Wednesday, joining a US diplomatic boycott of the event.