RT News - March 25, 2018 (17:00 MSK)

German police detain former Catalan president Carles Puigdemont - after an arrest warrant was reactivated by Spain, where he's wanted for rebellion over last year's independence referendum. In the stories that shaped the week. The diplomatic rift over the poisoning of Sergei Skripal and his daughter sees Russian and British diplomats being expelled. Moscow again insists it's not to blame - calling it an act of terrorism. And, the Facebook boss takes out full-page ads in British and American Sunday newspapers - to apologise for the massive data breach which saw tens of millions of personal accounts exploited.