Brian Mundubile, a leader in Zambia's opposition, has been charged with treason. His lawyer confirmed the charges.
Mundubile was arrested on Thursday. This happened after authorities conducted a raid. The politician had gone into hiding before his arrest.
The charges come amid high political tensions in the country. Mundubile had previously disputed the results of the recent presidential election.
The incumbent president won the election. Further details about the election dispute were not immediately available.
The exact nature of the treason charges has not been fully detailed by officials.
This development marks a significant escalation in Zambia's political climate.