A teenager who threw a roadworks sign across the street during disturbances in Bradford city centre last summer has been ordered to do 80 hours unpaid work for the community.

The city's magistrates heard that Abdul Mussawir Ali was also seen making abusive gestures at people he thought were National Front members.

Ali, 18, of Parkside Road, West Bowling, pleaded guilty to a charge of threatening behaviour and was also ordered to pay £90 costs.

Police video footage of the disturbances in and around Ivegate on July 7 was shown to the court.

Yvonne Tunnicliffe, prosecuting, said Ali was caught on video as he threw the triangular roadworks sign at another person in the street.

He handed himself into the police after his photograph was among those published in the Telegraph & Argus three weeks later.

He told officers he had been angry towards people he thought were members of the National Front and some men came out of a pub and started making racist comments. He had also heard that his cousin had been assaulted.

Maria Temkow, mitigating, stressed that Ali was not involved in the widespread rioting that followed in the city a few hours later.

It was his birthday that day and he went into the city centre to take part in a peaceful Anti Nazi League rally, as an active member of West Bowling Youth Club.

He lost his temper after seeing some drunken men come out of a bar and begin throwing bottles and glasses.

"A number of white men had been drinking heavily in Ivegate and a number of these men decided to cause trouble," said Miss Temkow.

He saw one man throw a bottle into the crowd and he was upset and angry about that. He was told that a cousin had been badly beaten up.

"He picked up the sign and threw it," Miss Temkow said. "He was told by an uncle or cousin to go home and he went home.

"He has shown real remorse for his behaviour."