Russian political scientist Vyacheslav Nikonov has described how he learnt of his invitation to a meeting with US intelligence whistleblower Edward Snowden.
He also told Reuters: "I was not in the position to reject..it's intriguing."
More top news
The Argentine navy announced that a sound thought to be an explosion had been detected by US and specialist agencies leading the search.
Earlier this month the Kill Bill star said she was too angry to share her thoughts on the allegations swirling around Hollywood.
The former Manchester City forward has denied the allegation of gang rape and is expected to appeal.