How common is online fraud?
Known as "Yahoo boys", Nigerian online fraudsters have become notorious for defrauding people of millions of dollars.
Last month, police say they rescued a Filipina woman who came to Nigeria in search of romance after meeting a man on Facebook. She was held for six months against her will.
Nigerian police have also announced three further arrests of alleged cyber fraud criminals with links to Italy and Turkey, suspected of the fraudulent supply of Covid-19 face masks.
Police allege they made more than $400,000 from online fraud.