Firefighters from Chester Fire Station, the Line Rescue Unit from Knutsford, and Merseyside Regional Ambulance Service NHS Trust went to the Gorse Stacks development site off Delamere Street.

The exercise involved a simulated rescue from one of the tower cranes on the site.

Wayne Clarke, firefighter with White Watch at Chester Fire Station, said: "Firefighters attending the scenario were given information that a worker had slumped over the controls of one of the cranes.

"Firefighters climbed the inner staircase along with paramedics where treatment of the casualty was administered.

"The Line Rescue Unit arrived and crew ascended the tower with equipment to complete their part which was to lower the casualty down from height."

White Watch manager Chris Rodaway said: "I would like to thank all those involved, especially Watkin Jones Construction, for their involvement in making this a successful event.

"Watkin Jones and the other construction companies with tower cranes within the city can feel reassured Cheshire Fire and Rescue have the ability and resources to ensure a successful outcome should this type of incident occur in the future."