A militant rebel group in Sudan claims to have captured 52 international peacekeeping troops in the war-torn Darfur region.
The soldiers from the joint UN-African Union UNAMID force have repeatedly been caught in the crossfire between government troops and rebels.
The militants accuse the peacekeepers of cooperating with the state security services.
UNAMID spokeswoman Susan Manuel declined to comment, saying only: “There is a situation on the ground unfolding since yesterday which we’re trying to resolve.”
Mainly non-Arab rebels took up arms in 2003, complaining the central government had left the region economically and politically marginalised. Khartoum mobilised troops and mostly-Arab militias to quell the unrest.
International efforts to broker peace in the region have so far faltered, hindered by fighting and rebel divisions.