St Albans search for missing man Alan Spray
More than 100 officers, the dog unit and a helicopter have searched a Hertfordshire city for a missing 73-year-old man.
Alan Spray was last seen near the Total garage on Verulam Road in St Albans shortly after 20:00 BST on Saturday.
Specialist search teams have concentrated their search in the Verulam Road and Batchwood areas of the city.
Mr Spray is 5ft 9in (1.75m), balding and wears light reactive spectacles.
He was described as wearing a brown and blue checked short sleeve shirt and brown/grey trousers. He may be carrying a book.
Officers are becoming increasingly worried for Mr Spray's welfare and have urged those who live in the Verulam Road area to check their sheds and garages.