evidence: 32 killed in attacks in the Abyei region, which is disputed between Sudan and South Sudan [...] Earlier this month, the U.N. special envoy for the Horn of Africa, Hanna Serwaa Tetteh warned that the "unprecedented" 7-month war between Sudan’s army and a rival paramilitary force was getting closer to South Sudan and the Abyei region. [...] Sudan and South Sudan have disagreed over control of the oil-rich Abyei region since South Sudan gained independence from Sudan after a 2005 peace deal ended decades of civil war between Sudan’s north and south.