Officers are concerned for a woman who is missing from her home in Ilkeston.
Melissa Jones was last seen in the Lord Haddon Road area on Friday 4 June.
The 41-year-old is described as being pale, with shoulder length brown hair and is 5ft 6ins tall.
She was last seen wearing a black jacket, a blue polo shirt and blue trousers and was also carrying a bright red Serco rucksack and a blue plastic bag.
Melissa has connections to Bramcote area of Nottingham and the Long Eaton area of Derbyshire – she is also known to travel by bus to Hull.
Anyone with any information about Melissa’s whereabouts is asked to contact Derbyshire police using any of the below methods, including reference 976-140621: