Millie Bobby Brown has announced she and husband Jake Bongiovi have adopted a baby daughter.

The 21-year-old star of Stranger Things and Enola Holmes posted a message on Instagram saying: "This summer, we welcomed our sweet baby girl through adoption.

"We are beyond excited to embark on this beautiful next chapter of parenthood in both peace and privacy."

It ended: "And then there were 3. Love, Millie and Jake Bongiovi." The couple didn't reveal the name of their new addition.

The news comes 15 months after the actress married Bongiovi, the 23-year-old son of rock singer Jon Bon Jovi.