The extradition of a martial arts expert arrested in Morocco over the £53m Securitas heist in Kent is likely to take many months, police have said.
The Mega Mall shopping centre is in the Moroccan capital, Rabat
The Home Office has applied for the extradition of Lee Murray, 26, of Sidcup in south-east London, who was held in the capital, Rabat, on Sunday.
Kent Police said on Monday it believed the process could take some time.
Britain has no formal extradition treaty with Morocco so applications have to be considered separately.
Mr Murray, a martial arts expert and cage fighter, was arrested near the Mega Mall shopping centre in Rabat.
Cage fighting is a mixture of kick-boxing and wrestling where contestants fight in a cage.
Three other Britons were held at the same time as Mr Murray, but it is understood they are not wanted by police in the UK.
Det Supt Paul Gladstone said on Monday that Mr Murray had been arrested on suspicion of "robbery, kidnap and other offences".
"The arrest was made with the authority of the Crown Prosecution Service, Kent Police and the Moroccan authorities," he added.
About £20m of the money stolen from the Securitas depot in Tonbridge on 22 February has so far been found.
Seven other people are due in court in the UK on 10 July charged with various offences in connection with the raid.
Meanwhile, Mr Gladstone also revealed that a number of people were arrested and a sum of money was recovered by police in Surrey and Hampshire last Friday.
However, he could not confirm that the operations were definitely linked to the Securitas heist.
Two men, from Devon and Hampshire, appeared at Maidstone Magistrates' Court on Monday charged with money laundering.
Mr Gladstone said: "A significant amount of cash was recovered. However we're not able to confirm the amount at this stage, or link the cash to the robbery or any similar crime.
"The money is now being counted and forensically examined," he added.