It is **mandatory to provide assistance** to victims of a traffic accident, except when help is already organized. This is due to several reasons:

- **Failure to render aid**: Not helping victims when it is possible to do so without endangering oneself is a crime called failure to render aid. This crime can lead to serious legal consequences, such as imprisonment.

- **Responsibility of witnesses**: All people who witness an accident must try to help the victims or, at least, call for help so that someone else can do it. This includes collaborating to prevent further damage and helping to restore safety in traffic.

- **Exceptions**: If traffic officers or emergency services have already arrived, and you cannot do anything else to help, it is best to keep moving to avoid obstructing the accident site.

- **Rules for assisting**: When assisting, it is important to act calmly and follow certain rules, such as not moving the injured unless necessary for their safety, protecting the neck from sudden movements, and not giving them medications, food, or drinks.

In summary, it is essential to provide assistance to accident victims unless help is already organized, to comply with the law and ensure the well-being of the injured.