Potential tie-up with meal-delivery firm Doordash was reportedly discussed but rejected in May

Shares in the UK food delivery company Deliveroo have risen after reports that US rival Doordash held takeover talks with the business, with analysts suggesting other bidders could come forward in the coming weeks.

The US meal-delivery group Doordash flagged an interest in a takeover of Britain’s Deliveroo last month, but talks ended because the two sides could not agree on the value of the deal, Reuters reported.

Daniel Křetínský asks more than 100,000 shareholders, including current and former staff, to sell shares

• Business live – latest updates

The Czech billionaire bidding to buy Royal Mail has sent letters to more than 100,000 shareholders, including current and former staff, setting out its formal £3.75bn offer for the business.

Daniel Křetínský’s EP Group is asking Royal Mail staff, who own more than 5% of the shares in the company, to sell in a move that would help pave the way for the takeover.