Detained Chairman of the Linyungandambo, a separatist movement, and governor of Barotseland Afumba Mombotwa has been moved from Sesheke to Mongu.
Afumba was arrested Friday evening in Sesheke and is likely to be charged with treason.
Afumba is the leading advocate for the total independence of Barotseland from Zambia.
On 14th August 2013, Afumba Mombotwa took oath of office as Administrator General of Barotseland, a move that incensed the Zambian government and sent security forces to search for him. He fled into Namibia where he had been operating from until his arrest on Friday.
When Afumba declared himself administrator of Barotseland, the police moved in and arrested dozens of people suspected of supporting him and charged them with treason and other offences. Some were later released but others were convicted of lesser crimes.
Western province has from 2011 been under siege by security forces. Hundreds of soldiers, anti-riot police and secret service agents have been permanently stationed in the area for fear of the province declaring independence.
But human rights activities accuse the security services of spreading AIDS and other sexually transmitted diseases; impregnating schoolgirls and sleeping with married women.