A man exposed himself to four women in the Swinley area of Wigan.
Shortly before 4pm on Tuesday 7 January 2014, a 17-year-old woman was walking near the junction of Spencer Road and Whitley Crescent when a man approached her and exposed himself.
A short while later, a man approached two 15-year-old girls and exposed himself. He then exposed himself to another 17-year-old girl walking on Whitley Crescent.
The man is described as being in his early 20s, around 5ft 10in tall with messy short dark blond hair.
He was wearing a distinctive grey lightweight hoodie which was zipped up. It had a red emblem on each shoulder which is described as being an upside down triangle. He was also wearing light grey shorts and dark coloured trainers with distinctive bright yellow soles.
Police are appealing for information and witnesses.
Detective Sergeant Peter Carletti said: “We have increased our patrols in the area but would ask people to remain vigilant and contact police if you see anyone acting suspiciously in the area.
“If you witnessed any of these incidents or you have seen a man matching this description please get in touch.”
Anyone with information should call police on 0161 856 7124 or the independent charity Crimestoppes anonymously on 0800 555 111.