Police are in search of witnesses of their seek for a person who sexually assaulted a 60-year-old girl and pinned her down by the neck in Melbourne's south-east final month.The feminine sufferer was strolling alongside a footpath simply off Toomuc Valley Highway in Pakenham about 6.30am on March 2 when she was attacked.She tried to name for assist through the assault, however the man threatened to kill her earlier than releasing her when he was interrupted by a passing automotive.READ MORE: Man arrested in relation to chilly case double-murder of Melbourne siblingsThe girl was going for a stroll when she was approached by the unknown male on a motorcycle who requested her for the time.She pulled out her cell phone to verify the time when the attacker grabbed her by the neck and compelled her to the bottom.He sat on the girl and sexually assaulted her as she was pinned down by her neck.After the automotive drove previous, the person fled on foot together with her telephone and bank card.READ MORE: First worldwide flight touches down in Victoria since resort quarantine revampThe girl was not bodily injured and managed to flag down a passer-by for assist.The male is perceived to be Caucasian, aged 18-30-years-old, 160-170cm tall and was sporting a black masks, black cap and black jacket with the hood pulled up.The bicycle he was driving had a blue crossbar and a blue and white body.READ MORE: Arrests made after giant haul of child system present in Melbourne propertyIn the meantime, a teen has been charged through the investigation however he isn’t being handled as a suspect for the sexual assault.A 16-year-old Officer boy was charged with theft and deception and has been bailed to seem at a youngsters's court docket at a later date.Investigators are interesting for witnesses and urge anybody with info to contact Crime Stoppers on 1800 333 000 or submit a confidential crime report at www.crimestoppersvic.com.au