A helicopter is flying over Barnsley this morning scouring the ground for a 'high risk' missing person.
South Yorkshire Police said a search and rescue helicopter has been deployed to help police officers on the ground.
No other details on the missing person have been released.
Superintendent Paul McCurry said: "Police in Barnsley are engaged in a search for a high risk missing person.
"A search and rescue helicopter is being utilised along with ground resources."