Deleting child collections with graph

Question

Using Entity Framework 6. I have a Ninja model that looks like this:

    public class Ninja
{
    public Ninja(Clan clan )
    {
            Clan = clan;
        EquipmentOwned = new List<NinjaEquipment>();
    }

    public Ninja()
    {
        EquipmentOwned = new List<NinjaEquipment>();
    }
    public int Id { get; set; }

    public Clan Clan { get; set; }
    public int ClanId { get; set; }

    public bool ServedInOnibawan { get; set; }
    public string Name { get; set; }

    public List<NinjaEquipment> EquipmentOwned { get; set; }
}

Im learning how to best delete graphs the EF way. Im receiving an id and i want to delete the ninja and all its NinjaEquipments. This is how i do it. My question is if its the most straight forward way or if there is a way where i could attach a ninja entity with the equipments all and have the ninja deleted leading to all equipments also being deleted?

//Deletes ninja AND all connected equipments
    public static void DeleteNinja(int id)
    {
        using (var db = new NinjaDbContext())
        {
            var ninja = db.Ninjas.Where(n => n.Id == id).Single();

            db.Entry(ninja).State = EntityState.Deleted;

            foreach (var eq in ninja.EquipmentOwned)
            {
                db.Entry(eq).State = EntityState.Deleted;
            }

            db.SaveChanges();
        }
    }