Police units around the world have joined forces in a series of undercover operations targeting one of West Africa's most notorious criminal networks, the Black Axe.
The operation, code-named "Jackal 3", involved officers with anti-bullet and armored vehicles who carried out checks in 21 different states between April and July of this year.
The mission, coordinated by the global police agency, Interpol, led to the arrest of 300 people with links to the Black Ax and other criminal groups that were part of the Nigerian mafia.
Interpol called the operation a major blow to the criminal network, but warned that its international reach and technological sophistication meant the group remained a global threat.

Canadian authorities say they busted a Black Ax-linked money laundering scheme worth more than $5 billion in 2017.
"They are very organized and structured," a senior Interpol official told the BBC.
According to a 2022 report, the Black Ax mafia gang and similar groups were responsible for most of the world's financial cyber fraud, as well as many of the most serious crimes.
The operation by Interpol was years in the making and led to the seizure of $3 million in illegal assets and the freezing of over 700 bank accounts.
"Black Ax" was created decades ago by a group of Nigerian students.
The organization maintains its secrecy and is involved in drug trafficking, prostitution and contract killings around the world, having the characteristics of a mafia organization.
But most of his income comes from cyber crimes.