Police are hunting a violent gang of girls believed to be responsible for a spate of mobile phone robberies.
The female robbers are thought to be responsible for a number of crimes, two involving attacks on women victims.
And one of their victims had to received hospital treatment.
Police trying to find the gang have today issued more detailed descriptions of the suspects they want to trace.
The move follows the three separate robberies at a funfair on the Cinder Moor, off Woodhouse Lane, Hyde Park, Leeds between 8.20pm and 9.20pm on Friday November 5.
One of the two victims who were assaulted during the robberies required treatment at hospital for a head injury.
The raiders were initially described as black girls aged12 or 13, and
mixed race girls aged 14 to 17. They were wearing baggy navy or black tracksuits and had navy or black bandanas with a white pattern covering their faces.
Now improved descriptions of the two main offenders have been established as a result of new information.
One girl was described as black, aged 15 to 16, 5ft 4ins to 5ft 6ins tall, chubby with a round face, thin lips and round eyes. She had dark or black hair tied back and worn to the side.
At the time she was wearing a white cotton sleeveless top with ruffles on the shoulders and a bow on the front and black faded jeans. She carried a very small black Primark bag with a long thin strap worn across her body.
Another member of the gang was described as being of mixed race, aged 16 to 17, about 5ft 8ins tall and slim, with curly dark or black hair.
She was said to have a boyish figure and a manly stance. She was wearing a navy blue or black baggy tracksuit with the hood up and had a navy or black bandana covering her face.
Det Insp John Dexter, of North West Leeds Division, said: "These were nasty violent attacks on young women at what should have been an enjoyable community event. They took place within a short space of time at a very busy event. The victims have told us there were plenty of people around who saw what was happening but didn't intervene. We would like to hear from those people or anyone else who has information that can help us track this group down, particularly the ringleaders."
Anyone with information is asked to contact PC Charlotte Long at Weetwood police station via 0845 6060606 or contact Crimestoppers anonymously on 0800 555 111.