UK's competition watchdog approves Amazon's investment for a 16% stake in Deliveroo, ending a long battle by the firms to convince regulators to clear the deal (Ryan Browne/CNBC)

Ryan Browne / CNBC:
UK's competition watchdog approves Amazon's investment for a 16% stake in Deliveroo, ending a long battle by the firms to convince regulators to clear the deal  —  - The U.K.'s competition watchdog has given Amazon's minority investment — which would see it take a 16% stake in Deliveroo — the green light.