1. Close up of Spanish and US officials signing deportation papers for Pyotr Levashov, a 37-year-old Russian suspected of being one the world's most notorious spammers
2. Levashov is handcuffed
3. Officials with Levashov
4. Levashov is put in police van
5. Levashov at the bottom of stairs to aircraft
6. Levashov and US Marshals walk up stairs into aircraft
Spain says it has extradited to the United States a Russian citizen who is suspected of being one the world's most notorious spammers.
Pyotr Levashov, a 37-year-old from St. Petersburg, was arrested in April while vacationing with his family in Barcelona.
US authorities had asked for him to be detained on charges of fraud and unauthorised interception of electronic communications.
A statement from Spain's National Police said officers handed Levashov over to US marshals on Friday.
The extradition was approved in October by Spain's National Court, which rejected a counter-extradition request from Russia.
Authorities in the US say they have linked Levashov to a series of powerful botnets, or networks of hijacked computers capable of pumping out billions of spam emails.