He added: “This is great, it’s been a blast, it’s fun and it’s fantastic but really as a grown up adult I cannot spend the rest of my life standing on this balcony pontificating about politics.”
Fans have thanked him on Twitter, with one saying: “There are many top notch BBC correspondents but Norman Smith is among the very best of the best.
“Always insightful, he can untangle the most complex political story and communicate it clearly and concisely.
“Unfailingly reliable, he always delivers. A huge loss to the Beeb. #r4today.”