The Niger Delta Avengers militant group has claimed three new attacks on Nigeria's battered oil infrastructure, promising to drag production down to "zero".
The world's longest and deepest rail tunnel is to be officially opened in Switzerland, after almost two decades of construction work.
The US has warned that the Euro 2016 football championship being held in France next month could be a target of militant attacks.
Chad's ex-ruler Hissene Habre has been convicted of crimes against humanity and sentenced to life in prison at a landmark trial in Senegal.
Over 700 migrants are feared dead in three Mediterranean Sea shipwrecks south of Italy in the last few days as they tried desperately to reach Europe in unseaworthy smuggling boats, the U.N. refugee agency said Sunday.
Supporters and opponents of Republican presidential nominee Donald Trump have clashed in the city of San Diego in California.