More than 250 people were arrested in 10 countries. Police also conducted raids in the US, UK, Turkey, France, Italy, Japan and Malaysia. Of those arrested, 167 were from Nigeria.
The FBI carried the coordinated raids over a period of several months. They targeted groups of people suspected of stealing millions of pounds from companies and individuals.
Almost $3.7m (£3m) in cash was seized during the raids. Evidence gathered from the operation should also lead to another $118m being seized, according to the FBI.