How to search by child categories in sequelize db?

Question

ORM

Hello, there are tables of news, categories and a table of categories with news.

const news = sequelize.define('news', {
  name:  { 
    type: Sequelize.STRING, 
    allowNull: false
    }
})

const categories = sequelize.define('categories', {
  name:  { 
    type: Sequelize.STRING, 
    allowNull: false,
  },
  parental_id: { 
    type: Sequelize.INTEGER, 
    defaultValue: null,
    foreignKey : true
  }
})

const categoriesNews = sequelize.define('news_categories', {})
news.belongsToMany(categories, {through: categoriesNews })
categories.belongsToMany(news, {through: categoriesNews })
categories.belongsTo(categories, {foreignKey : 'parental_id', sourceKey: 'id', as: 'categoriesParental'})

How can I get news not only by category, but also by its child categories?
For example, there are categories:
Recreation
-Sports -Football
And
if I search for news in the category Recreation, how can I get news and not only in the Recreation category itself, but also in child categories?