Two people, each of whom have Parkinson's disease, have gone missing from Wellington and Feilding.
Stephen Landrum, 56, went missing from his daughter's Wellington address yesterday.
It was thought he intended to catch a bus to Levin to stay with family members but he did not arrive.
In Manawatu, 58-year-old Denise Lynch left Ranfurly Manor rest home in Feilding for a walk this morning and has not been seen since.
The police said she also suffers from diabetes and needs medication every two hours during the day.
They said they had concerns for the safety of both.