18 June 2012 Last updated at 15:24 ET

Amy Hofmeister's death caused by 'high-speed chase'

Amy Hofmeister died in the collision in Taunton on 15 June

A 13-year-old girl killed while cycling in Somerset died as the result of a high-speed car chase between a woman and her boyfriend, a court has heard.

Amy Hofmeister died as one of the cars spun out of control and hit her in Taunton on 15 June 2011.

Leanne Burnell, 20, from Bishops Hull, pleaded not guilty to a charge of causing death by dangerous driving.

Ms Burnell's boyfriend, Leonard Jones, 41, has admitted the charge. He is due to be sentenced at a later date.

The prosecution claims as Ms Burnell was involved in the race she is jointly responsible.

'Game of chase'

"A Vauxhall driven by Leonard Jones ploughed into Amy and her friend," said prosecutor William Hunter at Taunton Crown Court.

"It was going far too fast because he was playing a high-speed game of chase or racing.

"His car had just overtaken the other car and that car was driven by the defendant."

The court heard Ms Burnell told the police she had not been involved in any race and did not drive faster than 25mph.

But the prosecution said cars reached speeds of up to 80mph through the centre of Taunton.

The case continues.