def METHOD_NAME(self, hazard_level):
    """
    Similar to `self.zone.select(**kwargs)`, but delete zones in region 5.
    Args:
        hazard_level: 1-6, or 10 for center zones.
    Returns:
        SelectedGrids: SelectedGrids containing zone objects.
    """
    if 1 <= hazard_level <= 6:
        return self.zones.select(hazard_level=hazard_level).delete(self.zones.select(region=5))
    elif hazard_level == 10:
        return self.zones.select(region=5)
    else:
        raise ScriptError(f'Invalid hazard_level of zones: {hazard_level}')