SAM SODJE |
The 13 footballers, aged between 18 and 30, are all from Football League clubs in the north-west of England and none of them have yet being charged.
They are being interviewed at police stations across the country after they were held as part of an investigation into alleged bribery and money laundering, the National Crime Agency said.
In December the original six suspects were arrested as part of the inquiry, prompted by information passed on by the Sun on Sunday, and were bailed to return on April 8.