A ceasefire agreement is due to take effect in South Sudan shortly, despite allegations of fresh attacks. The government and rebels signed the ceasefire agreement on Thursday, after talks in Ethiopia. More than 500,000 people have been forced from their homes during the month-long conflict. Correspondents say that effective monitoring of the truce will be vital once it begins, as tension between the two sides is very high. The talks have now been adjourned and are due to continue on 7 February. Skirmishes The ceasefire is due to come into effect at about 17:30 GMT. The UN estimates that considerably more than 1,000 people...