JUBA/KHARTOUM - South Sudan accused its northern neighbor Sudan on Tuesday of bombing the disputed border town of Jau, killing four soldiers and breaking a non-aggression pact the two former civil war foes signed last week.
Sudan denied the charges and said it was respecting the agreement.
Relations between the two countries have plunged after talks failed to halt an oil export dispute, end violence in border areas and resolve other issues relating to the South's secession last year under a 2005 peace deal.
The governments signed a non-aggression pact just two days before the reported bombing. The agreement, brokered by the African Union in Addis Ababa, aimed to defuse tensions over the row, which officials have warned could trigger a war.
South Sudan's army spokesman Philip Aguer said a Sudanese Antonov cargo plane dropped several bombs on a military base in Jau, a town straddling the poorly defined border.