Our friends at Humberside Fire & Rescue Service, the Yorkshire Ambulance Service NHS Trust, and Humberside Police are taking part in an emergency response drill based around a hypothetical chemical spill at a pretend sporting event.
The exercise will be very lifelike, with people role-playing being injured, so we want to reassure everyone in advance that there is no need for concern.
All the action is taking place in the car parks so traffic will be unaffected.