A man has been arrested by officers investigating phone hacking, Scotland Yard said.
The 60-year-old was arrested at his home in south west London.
He was held on suspicion of conspiring to intercept communications and is being questioned at a south London police station.
So far 25 people have been arrested in connection with Operation Weeting, the investigation into phone-hacking.
A Scotland Yard spokesman said: "Officers from Operation Weeting, the Metropolitan Police Service inquiry into the hacking of telephone voicemail boxes, arrested a man in south west London this morning, Thursday August 30.
"The 60-year-old man was arrested at his home address at approximately 6.45am on suspicion of conspiring to intercept communications contrary to Section 1 of the Criminal Law Act 1977.
"He is being interviewed at a south London police station."