LONDON (AP) — Former News of the World editor Andy Coulson acknowledged for the first time Wednesday that he listened to hacked voicemail messages while he was editor of the tabloid.

Coulson told a London jury that he was “shocked” in 2004 when a reporter at the newspaper — owned by magnate Rupert Murdoch — said he had heard voicemails that showed Cabinet minister David Blunkett was having an affair.