A man was taken to hospital after the air ambulance landed in Stoke-on-Trent.
Families spotted the distinctive chopper on land off Goldsmith Place in Meir Hay on Saturday.
StokeonTrentLive readers also reported seeing a number of ambulances in nearby Priestley Drive
Paramedics have now confirmed a man was taken to Royal Stoke University Hospital.
A West Midlands Ambulance Service spokesman said: “We were called to reports of a medical emergency at a private address on Carroll Drive at 3.30pm on Saturday.
“Two ambulances, a BASICS doctor and the Midlands Air Ambulance from Staffordshire attended the scene.
“On arrival we discovered one patient, a man, who had suffered a medical emergency. Following treatment at the scene, he was taken to Royal Stoke University Hospital by land ambulance.”