In the first incident a woman was assaulted at around 7.50pm while she was running in Hartford Marina. She was approached by a man on a bicycle who struck her with his hand before cycling away. A police spokesman said: The man was described as in his 20s, Asian and was wearing jeans and a dark t-shirt. At about 8.50pm, a second woman was attacked in the same way, involving a man of a similar description, while running in Thicket Road, Houghton. Anyone with information about either incident should contact police on 101 quoting crime number CF0472880817. Alternatively call Crimestoppers, anonymously, on 0800 555 111.