Lambeth Country Show funfair ride 'malfunction' leaves four hurt
It said on Sunday that the four injured people were being cared for in hospital, adding: "Our thoughts are with them.
“We thank the emergency services for their swift response and for the support they are providing to the affected families.
"To allow a full investigation, funfair rides at the show will be impacted by closures for the second day of the country show.
"The safety and well-being of our attendees remains our top priority, and we are committed to providing a secure and enjoyable experience for all visitors.”
Brockwell Park is a popular green space located near Brixton.
The incident fell on the 50th anniversary of the Lambeth Country Show, which is one of the "biggest free family festivals in the UK", according to its website.
The show is scheduled to continue from 13:00 BST on Sunday.
A spokesperson for London Ambulance Service said four crews were deployed along with members of its hazardous area response team and an air ambulance.
All four people injured were taken to "major trauma centres", they added.