Investigators hope the notes' "distinct linguistic characteristics" may be recognised by a member of the public.
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Call for 'full review' as pressure grows on Infantino
The leadership of Fifa is publicly questioned by football's governing bodies in Europe, North and Central America and the Caribbean.
Call for 'full review' as pressure grows on Infantino
The leadership of Fifa is publicly questioned by football's governing bodies in Europe, North and Central America and the Caribbean.
Gold family agree to sell West Ham stake to Staveley
Former West Ham co-owner David Gold's daughter Vanessa confirms plans to sell shares to a consortium headed by ex-Newcastle co-owner Amanda Staveley.
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Chelsea complete the signing of Brighton striker Danny Welbeck.
Current Ebola outbreak worst ever in DR Congo, WHO says
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Greater Manchester mayor says Burnham's new powers will change lives
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Greek police fast-tracking tests to find out how British woman found in suitcase died
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The five dramatic days that shook Infantino and world football
BBC Sport's Simon Stone reflects on the unravelling of Gianni Infantino's plans to sell off stakes in Fifa competitions.
The five dramatic days that shook Infantino and world football
BBC Sport's Simon Stone reflects on the unravelling of Gianni Infantino's plans to sell off stakes in Fifa competitions.
Faisal Islam: Four reasons why the World Cup plan never stacked up
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Soap star Shane Richie facing drink-drive charge
The 62-year-old was arrested at a petrol station and is due in court in September, police say.
Soap star Shane Richie facing drink-drive charge
The 62-year-old was arrested at a petrol station and is due in court in September, police say.
Infantino on the brink? Who might replace him if he goes?
Fifa president Gianni Infantino is in the eye of a storm after scrapping his attempt to sell stakes in the World Cup. If he goes, who comes in?
Infantino on the brink? Who might replace him if he goes?
Fifa president Gianni Infantino is in the eye of a storm after scrapping his attempt to sell stakes in the World Cup. If he goes, who comes in?