Daily brief
UK regulator Ofcom is investigating Telegram over concerns about child sexual abuse material on the platform.
Jeff Bezos' AI lab is nearing a $38 billion valuation in a funding deal, according to the Financial Times.
Rio Tinto reported a rise in iron ore and copper production in the first quarter.
City firms are relaxing office-working policies as Tube strikes hit London.
Associated British Foods announced the spin-off of its Primark subsidiary.