un 's rights chief has urged britain to crack down on tabloid newspapers inciting racial hatred after a columnist for the sun called migrants ` cockroaches ' .
in a hard-hitting statement , un high commissioner for human rights zeid ra'ad al husein said katie hopkins had used language similar to that employed by some rwandan media outlets in the run-up to the 1994 genocide , and by the nazis in the 1930s .
he said the april 17 article in the newspaper was reflective of a ` nasty underbelly of racism that is characterising the migration debate in an increasing number of eu countries ' that