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A second sexual grooming case has been uncovered in Rochdale, it has been reported.

Several men have been arrested on suspicion of sexually abusing a teenage girl over a a six-year period, the Manchester Evening News has reported.

It follows the conviction of nine men from Rochdale and Oldham who were jailed for running a child sexual exploitation ring.

The men had targeted vulnerable girls as young as 13.

During the trial, five girls gave evidence, but police believe there may have been up to 47 victims.

Chief Constable of Greater Manchester, Peter Fahy, said he hoped more victims of sexual abuse would come forward after the men were sentenced.

But he said the vulnerability of the witnesses made it difficult to bring the cases to court, describing the girls as "damaged individuals".

Police said the latest arrests were not related to the case that concluded with the nine men being jailed from four to 19 years.

They had been found guilty of offences including rape and conspiracy to engage in sexual activity with a child.

On sentencing at Liverpool Crown Court, Judge Gerald Clifton said the convicted men treated the girls "as though they were worthless and beyond respect".

All five girls who were witnesses in the gang's conviction were known to social services at some stage in their lives.

Rochdale Council has been tackling the problem of grooming by running an education programme warning schoolchildren of the dangers of child sexual exploitation.

So far, 10,000 high school students have taken part.