Boy suffers heart attack after lightning strike
A West Midlands Ambulance Service spokeswoman said: "Crews arrived at the park to find a teenage boy receiving CPR from a member of the public.
"The 16-year-old boy suffered serious burns after being struck by lightning and was in cardiac arrest.
"Crews continued emergency medical treatment on the boy and transferred him by land ambulance to Heartlands Hospital."
A second teenage boy suffered convulsions consistent with an electric shock. He was treated at the scene before also being taken to Heartlands Hospital.
The other four victims suffered minor injuries and were assessed at the scene before three of them were taken to City Hospital and one to Heartlands Hospital.