As fans pay tribute to actor Alan Rickman, Harry Potter devotees have set up their own memorial at King's Cross station in honour of the man who played a key role in the film franchise - Professor Severus Snape.

The tribute appeared to have been started by Twitter user @imjfernandez yesterday, but there were still bunches of flowers at the station this morning.

In both the books and the films, Harry travelled to Hogwarts School on the Hogwarts Express - a steam train that departed from Platform Nine and Three Quarters of King's Cross station.

It could only be reached by passing through a magical barrier.

On the official Potter website, J.K. Rowling has previously written about why King's Cross station is particularly important to her.