Key facts
- Zambian police have summoned opposition leader Brian Mundubile.
- The summons is related to alleged national security threats.
- Mundubile intends to challenge the election results in court.
- He has reportedly gone into hiding.
Zambian police have summoned opposition leader Brian Mundubile for questioning, escalating a dispute following a disputed election. Mundubile is expected to challenge the election results in court. He has reportedly gone into hiding amid allegations of vote-rigging and subsequent arrests of opposition figures.