A 27 year-old Nigerian living in Poland is awaiting extradition to the United States over an estimated $7m cybercrime.
He was arrested by police in Wroclaw after being linked with alleged cyberfraud and extortion.
The police Central Bureau of Investigation said in a communique Wednesday that the Nigerian was arrested following cooperation with the FBI and Interpol, which had circulated a warrant for him.
The man, surprised by the police raid, is suspected of banking fraud, extortion and theft of online banking access data.