He has been missing from his home in Nuneaton since Friday 17 May.
Officers are still trying to find 29-year-old Wisdom Zulu, 29 from Nuneaton.
He is black, of slim build and 5ft 10in tall. He was carrying a black rucksack.
Warwickshire Police say they have reason to believe that Wisdom may be in Coventry, Luton, or another major city and are urging people to call 999 if they see Wisdom.
Detective Inspector Paul Sartoris said “We are now widening out our search, as we think there’s a strong possibility that Wisdom has left Warwickshire to visit another city.
“Wisdom, if you’re reading this, please get in contact with us as soon as possible so we know that you’re OK.”
Leicestershire Police issue advice ahead of emergency alert test
Music in the Park will return to Loughborough
East Midlands Ambulance Service secures over £400k grant to expand electric vehicle infrastructure
Investigation continues after six injured in Leicestershire dog attack
Foster homes for dogs needed as charity has soaring demand for domestic abuse services
Firearms officers attend report of dog attack in Bardon
Body found in search for missing Loughborough man
Local duo progress to NHS Chef of the Year 2025 final
