Sam Griffiths was carried from the track at about 1.30am on New Year's Day. Emergency services workers called to Burgess Hill station made efforts to save him but he was pronounced dead at the Royal Sussex Coun ty Hospital in Brighton.

One floral tribute with a white rose on the Brighton-bound platform said: "In Loving Memory of Sam. Taken too soon. Good Night and God Bless. Rob Thomson and family."

You are welcome to add your own tributes here.

Another said: "Sam , We will love you always."

It is believed Sam was electrocuted by the live rail after he slipped while at track level and fell on the live "third rail" used to power trains.

Police have still not completed their interviews and investigation into how Sam came to be down on the track. One possibility they will be examining is that Sam's death was a tragic end to a prank.

But they say his death is not being treated as foul play.

A large group of friends turned up at the station on Friday (January 2)to pay their own personal tributes at the scene.

Shocked and distressed pals are also paying tribute to Sam on the Internet.

George Bramley, of Hurstpierpoint College, where Sam was a student keen on rugby and acting, wrote: "Four years I have known you mate. Loved every bit of it. You were a top lad, always smiling, never in a bad mood, always there for your mates.There are not many people around who are like you these days."

Tim Manly, Head of Hurstpierpoint College, said in a statement to media: "He was a lovely young man, full of life and with a gentle, friendly manner.

"He threw himself with enormous energy and enthusiasm into life at Hurst and settled in very quickly indeed. His outgoing nature ensured he soon established himself as a very popular, much loved and valued member of the school community.

"Sam was a gifted rugby player, and joined our Hurst rugby squad in their pre-season training tour to Ireland in August. Subsequently, playing Centre, he represented the school in both the 1st and 2nd XV teams during the autumn term.

"It was not just in sport, however, that Sam made an impact here at the College. The annual House drama competition, taken very seriously by students and staff, revealed his hitherto undiscovered talent as an actor, and his performance was given special mention by the independent external adjudicator who came to judge the competition.

"Sam will be greatly missed by Hurst pupils and staff and our thoughts and prayers are with Sam's family, and his friends."

Witnesses to the accident are asked to contact British Transport Police on 0800 405040.