Isabella Sorley, 23, has been sentenced to 12 weeks in jail and John Nimmo, 25 has been sentenced to eight weeks in jail - both with immediate effect - for subjecting high profile feminist campaigner Caroline Criado-Perez to online abuse.
Earlier this month the pair pleaded guilty to sending menacing tweets following Criado-Perez's campaign to ensure a woman featured on British bank notes.
More top news
ComRes polling agency chairman says the next 100 days will be be gruelling in the most uncertain General Election that anyone can remember.
Pictures taken 70 years after the liberation of the Nazis' Auschwitz death camp echo the horrors of its Holocaust past.
Some 60 years after the brutal post-war communist regime 'disappeared' dissidents, the secrets of Poland's unmarked mass graves are exposed.