Financial markets head down after troubles at a US bank

Shares in Silicon Valley Bank (SVB), a key lender to technology start-ups, plunged after it announced plans to shore up its finances. Ed Butler finds out why other global shares have also suffered. Iran and Saudi Arabia have agreed to re-establish diplomatic relations after seven years in a deal brokered by China seeking to reduce tensions in the oil-rich region. And we bring you a UN breakthrough on a long and apparently intractable argument over a stranded oil tanker around the Gulf of Aden. Also It’s the Oscars this weekend and every award season celebrities are invited to gifting suites where they can select free stuff in return for endorsements.