"The accord has not been fully implemented in the years after its signing," South Sudan’s Foreign Minister Benjamin Barnaba said.
He added that "Russia’s goodwill and amiability toward Sudan and South Sudan helped us realize that we need to deepen relations and follow through on agreements."
Barnaba said he had been invited for Khartoum talks in an effort to build on the agreements reached by the two Sudanese authorities at a previous round of negotiations in Moscow.
At the talks in the Russian capital in September, the two rival governments agreed to reenergize work in the framework of the 2012 deal.
"The Moscow meeting was a success," Barnaba noted. "We agreed that we need to wake up, restore committees [for cooperation] between the two countries, specifically on security."
Relations between the two countries have been strained over various issues since oil-rich South Sudan broke off in 2011, including on the demarcation line.
