Medics at Manchester city centre's huge new Nightingale Hospital are already treating their first patients ahead of the official opening on Friday.
Pictures from the site show at least one patient being assessed in the centre - with other medics taking part in training exercises.
The field hospital, at Manchester Central Convention Complex, was built in just two weeks and will have capacity to treat 750 people.
On Easter Monday, bosses at the facility announced they were ready to admit patients. Two huge BOC oxygen towers have been erected outside the venue which will supply oxygen for 648 beds.
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