More than 4 million refugees have fled Sudan since war began

UNHCR spokesperson says that the milestone was reached and that the scale of displacement was putting regional and global stability at stake.

GENEVA - The number of people who have fled Sudan since the beginning of the war has surpassed 4 million, a spokesperson for the UN refugee agency said on Tuesday.

UNHCR spokesperson Eujin Byun told a Geneva press briefing that the milestone was reached on Monday and that the scale of displacement was "putting regional and global stability at stake."