Police are appealing for help in locating two missing people in Strabane and Derry.
Nadine Ferrario has not been seen in the city since around 3 p.m. on Sunday afternoon.
She may have been in Coleraine yesterday.
When last seen, she was wearing a green coat and pyjama trousers.
Authorities say they are increasingly concerned for her welfare.
Separately, police in Strabane are concerned for Tomasz Jabkiewicz, a local resident who has not been seen for several weeks and has not had contact with his family.
Anyone with information on the whereabouts of Nadine or Tomasz is asked to contact police immediately on 101.
