THE mother of a Leeds schoolboy stabbed to death in a "monstrous" gang attack said four men convicted of his murder should have been given tougher sentences.

Tyrone Clarke, 16, who was of mixed race, was stabbed three times as he and his friend Raffael Lovick, 18, were chased by a group of up to 30 Asians on April 22.

Islamur Rahman, 21, Anjum Amin, 22, Kamer Akram, 22, and Liaquat Ali, 17, all of Beeston, were given life sentences yesterday at Leeds Crown Court for his murder.

But the judge Mr Justice Wakerley said the attack was not racially aggravated and ordered that they should only serve between nine and 12 years before being considered for parole.

Tyrone's mother Lorraine Fraser, of Beeston, shouted "No, no, my son died. You've ruined my life and my daughter's" from the public gallery as the minimum sentences were read out.

Outside court, Ms Fraser said: "I'm not happy with the years they got. They never gave my son any mercy, they shouldn't have had any mercy today.

"I can understand the judge's ruling but, from my point of view, as a mother, how emotional this has been for me and my family, Tyrone's friends and the Beeston community, we feel that the sentence they got, the years, was not enough."