Fresh fighting has erupted in South Sudan after rebels launched an attack on the key town of Bor, even as regional African blocs threaten targeted sanctions and military intervention if rival army factions fail to stop hostilities.

South Sudan, the world's youngest country, has been reeling under intensified violence since mid- December as rival army factions launch attacks against each other.

President Salva Kiir, an ethnic Dinka, has been accusing ousted former vice-president Riek Machar, who hails from the Nuer tribe, of attempting a coup against the government leading to the clashes, which have claimed at least 1,000 lives so far.

To quell the clashes in the landlocked middle African country, the African Union (AU) has said it will impose targeted sanctions on the camps which incite violence in the oil-rich South Sudan.

The AU's latest proposal has come after Ugandan President Yoweri Museveni's announcement stating the neighbouring African forces will intervene to stop the violence if Machar does not halt the rebel attacks.

Written and presented by Alfred Joyner