What is causing the train delay in this situation?

The train is being delayed due to a medical situation onboard. As announced by a medical emergency responder, the train is being held at the station while they attend to this emergency. The announcement states clearly that they 'have a medical situation,' indicating the reason for the temporary stop. Passengers are asked to 'hold on' by another responder, suggesting that the delay is necessary while medical assistance is provided. This represents a common but critical scenario in public transportation where service is temporarily interrupted to prioritize passenger health and safety.