A SCHOOLBOY was brutally kicked by muggers who stole his mobile phone during a train journey between Rochester and Gillingham. Harrison Griffiths, 13, a pupil at Chatham Grammar School for Boys, was knocked to the floor and robbed by the gang of four.

Three boys asked Harrison for the time, then jumped on him when the train went through the Chatham tunnel and kicked him in the back several times. As a teenage girl kept watch at the end of the carriage, the attackers went through his wallet and, finding he had no money, threw it back at him.

They then ran off to the other end of the train with Harrison's new £80 mobile phone. Harrison, who suffers from attention deficit hyperactive disorder (ADHD) went home to Canterbury Street, Gillingham in a state of shock before phoning the police. He is now too traumatised to take the train to school in the morning.

His mother, Alison, said: "There is a lot of mobile phone theft but because Harrison has ADHD he needs the phone so he can be in constant contact."

The three male attackers are aged between 15 and 17. They were wearing black clothes, baseball caps, and white trainers. They were around 5ft 7ins tall. Their female accomplice is about 15, 5ft 6ins tall with blonde hair. She was wearing a black, leather jacket.

Anyone with any information is asked to telephone telephone 0800 405440.