Ordonez, 36, is allegedly a member of the Basque separatist group ETE and he escaped from authorities in Spain back in 2001.
According to Metro
, Ordonez was detained on Friday night after Lothian and Borders Policed raided a property in the Leith area of Scotland's capital.
According to BBC
, it is believed that Ordonez was a carrier for ETA, bringing materials and people across the border between France and Spain.
According to Scottish Daily Record
, Ordonez has been on Spain's most wanted list since 2008. It is believed that he has helped at least 10 gunmen cross the France/Spain border.
Authorities in Spain say that Ordonez was residing in Scotland as a "sleeper", waiting for orders from the Basque terror group.
Spain's interior ministry said that he has been in Scotland for quite some time, and that everything suggests that he was part of ETA's reserve apparatus, which are groups formed by fugitives who are willing to form active cells when leadership in the ETA decides to do so.
Ordonez will now appear in court in Edinburgh on Monday. He is expected to be sent back to Europe where he will be placed on trial.