Crimestoppers are offering up to £10,000 to anyone with information about a man wanted in connection with a string of violent attacks in south London.
Roger Critchell, Director of Operations for the independent charity, said: “The person responsible needs to be brought to justice.
“Not just for the victims, but to stop anyone else suffering another terrifying attack.”
The Metropolitan Police have released CCTV footage of a man they want to talk to in relation to the attacks which took place over the past three months.
All three assaults targeted lone women, attacked from behind, at night time. The brutality of the attacks has increased each time.
The first victim was a 31-year-old woman. She was left with a head injury after she was targeted on December 4 in Peckham.
The second victim, also in her 30s, was found unconscious by a passer by on December 13 in Hanover Park, also in Peckham.
The last victim was an 18-year-old and was attacked on January 1 in Deptford. Her face and head were seriously injured.
Detective Superintendent, Terry Sharpe from the Sexual Offences, Exploitation and Child Abuse Case Team said: “These have been increasingly violent attacks and very traumatic for all the victims.
“As our enquiries continue I urge women in and around the areas affected to continue to be alert and follow personal safety advice that can be found at our website www.met.police.uk.”
The reward was announced on February 12 but according to the charity no one has yet come forward with any information.
Anyone with information can contact Crimestoppers anonymously on 0800 555 111.
The full reward will be handed over only if the information is passed to Crimestoppers.