The elder statesman of Mexico's main leftist party said on Sunday the group was on the verge of falling apart after a series of mistakes and the disappearance of 43 students in a state it runs in the southwest of the country.
The Brazilian government will not interfere with a police investigation into suspected graft at state-run oil company Petroleo Brasileiro SA, the country's justice minister said on Saturday.
A surgeon from Sierra Leone, critically ill with Ebola, was flown to a Nebraska hospital for treatment on Saturday, and is sicker than previous patients treated in the United States, medical officials said.
Fresh volleys of artillery fire were heard across many parts of the separatist stronghold of Donetsk in eastern Ukraine on Sunday, a Ukrainian government statement said, after Kiev warned again of rebel preparations for a fresh offensive.
