President Bukele, who labels himself as the "coolest dictator" and a "philosopher king," has built election success and immense popularity on an extreme security policy to combat gang violence in El Salvador, incarcerating large quantities of alleged gang members and securing a massive drop in homicides.

The US has agreed an "unprecedented" migrant deal with El Salvador, with the country offering to accept deportees from any country - including criminals.

El Salvador has agreed to house in its prisons undocumented immigrants of any nationality with criminal backgrounds who are deported from the United States — a development that comes as