Harry Potter star Emma Watson has dashed around the London Underground to hide books for passengers, BBC informs.

The actor dropped off copies of Maya Angelou's Mom & Me & Mom, the November pick for her online book club Our Shared Self.

The star left the novels as part of the Books On The Underground movement, which sees "book fairies" leave their favourite reads for people to enjoy.

Watson left about 100 books with some including a hand-written note.

In it, she wrote that she hoped the reader would enjoy the book, and urged them to leave it on the Tube afterwards for others to find.