Turner allegedly filed the lawsuit in federal court in New York City on September 20. In the court documents, Turner alleges that she and Jonas had agreed to raise their children in England before their separation, according to TMZ. She claims that they had even begun searching for a school for their oldest child, Willa.

However, Turner says that Jonas has since been withholding the children’s passports and refusing to let her take them out of the United States. She claims that this is a violation of the Hague Convention, an international treaty that governs the return of children who have been wrongfully removed from their home country.

In the lawsuit, Turner is asking the court to order Jonas to return the children’s passports and allow her to take them back to England. She is also seeking sole custody of the children.

Jonas has not yet publicly commented on the lawsuit.

The news of Turner’s lawsuit comes just weeks after the couple announced their separation. Turner and Jonas were married for four years and have two young daughters together.

What is the Hague Convention?

The Hague Convention on the Civil Aspects of International Child Abduction is an international treaty that governs the return of children who have been wrongfully removed from their home country. The convention was signed by 99 countries, including the United States and the United Kingdom.

Under the Hague Convention, a parent who has removed a child from their home country without the consent of the other parent can be ordered to return the child to their home country.

What happens next?

Now that Turner has filed a lawsuit, the court will need to decide whether or not Jonas has wrongfully retained the children’s passports. If the court finds that Jonas has violated the Hague Convention, it could order him to return the passports and allow Turner to take the children back to England.