US president Barack Obama and Russian president Vladimir Putin are pictured at the start of a luncheon for world leaders on September 28, 2015. Justin Lane/EPA
US president Barack Obama and Russian president Vladimir Putin are pictured at the start of a luncheon for world leaders on September 28, 2015. Justin Lane/EPA
US slaps sanctions on Russia in retaliation for hacking
It comes after US intelligence agencies concluded that Moscow tried to help Donald Trump win the presidential election by hacking American political sites and email accounts