Who is the FBI's most wanted 'Cryptoqueen'?

Ruja Ignatova was the co-founder and figurehead of OneCoin, a scam cryptocurrency.

Also known as the "missing Cryptoqueen", the Bulgarian woman was added to the FBI’s top 10 most wanted list earlier this year.

Jamie Bartlett, whose BBC podcast investigation brought global attention to Ms Ignatova's story, now believes his team might be one step closer to locating the scammer.