Scotland, who earlier met with President Edgar Lungu, is seeking the release of Hichilema.
Hichilema is charged with treason for allegedly endangering the life of the Head of State.
But observers believe the charge is trumped up to punish an opposing voice.
Details of the meeting held between Hichilema and Scotland on Monday remains confidential.
BELOW IS A STATEMENT FROM HICHILEMA’S PRESS OFFICE
HH HOLD TALKS WITH COMMONWEALTH SECRETARY GENERAL AGAIN.
We wish to confirm that this [yesterday] afternoon the UPND President, Mr. Hakainde Hichilema yet again, held talks with the Secretary General of the Commonwealth, The Right Honourable, Ms Patricia Scotland at Mukobeko Maximum Prison, Kabwe, Central, Zambia.
The outcomes of the meeting remain confidential, as talks are ongoing with various stakeholders.
HEAD OF PRESS OFFICE
OFFICE OF THE UPND PRESIDENT
MR. HAKAINDE HICHILEMA.