The BBC has said it "does not name its sources nor is it appropriate to go into detail around editorial processes" regarding the Sir Cliff Richard raid leak.
In response to a letter from Home Affairs Select Committee chair Keith Vaz demanding answers from the broadcaster, a BBC spokesperson said: "We have received the letter and will respond in due course.
"Mr Vaz understands and supports the right of the media to report matters in the public interest.
"The BBC's editorial independence is protected by our Royal Charter and is highly valued by the public. The BBC does not name its sources nor is it appropriate to go into detail around editorial processes."