The government and rebels are still at odds as flames engulf the hometown of opposition leader Riek Machar and rebels claim 700 defectors from Army.
The South Sudanese government says rebels continued attacking government troops Friday and Saturday, though a cease-fire had been agreed upon. If attacks continue the troops will defend themselves, officials say.
Omar al-Bashir said he would "liberate" the people of South Sudan if fighting over oil revenues continue.
The government in Khartoum says they will not stand by after an oil field was occupied by South Sudanese forces.
Rebel movements in South Sudan that have clashed with the South Sudanese army pose a greater threat to the fledgling state than even aggression from northern Sudan.