Daniel Radcliffe reveals he's 'very happy with someone'

Harry Potter star Daniel Radcliffe has revealed he is "very, very happy" in a relationship.

The 25-year-old said he "knows exactly what true love is" and believes it is "when you're really, really happy with one person."

"I am very, very happy with someone," he told Good Morning Britain, but said he would rather keep the details of his relationship private.

Watch the full interview on the Good Morning Britain website.