“Sudan and South Sudan are “locked in a logic of war”, the UN Security Council has been told.
The two countries are fighting over their disputed border, with Sudan trying to remove South Sudan forces from its Heglig oil-field.
African Union mediator Thabo Mbeki and UN envoy Haile Menkarios gave the warning to a closed-door UNSC meeting.
US ambassador Susan Rice said diplomats discussed using sanctions to pressure both sides to de-escalate the conflict.
She added the envoys had told the Council that hardliners were in control of governments in both Khartoum and Juba.
The UNSC also repeated demands for South Sudan to withdraw from Heglig and the Abyei region, and for a “complete, immediate, unconditional” end to all fighting.
South Sudan sent its forces into Heglig last Tuesday, saying it was responding to air and ground attacks by Sudan.” — Copyright 2012 BBC