TikTok users in the US are opening the app to find a message saying they "can't use" the social media platform "for now" due to a law enacted in Washington.
The owner of Poundland, one of Britain's biggest discount retailers, has drafted in City advisers to explore radical options for arresting the growing crisis at the chain.
TikTok has gone dark across the US - affecting 170 million American users - after the Supreme Court ruled against its bid to avoid a ban that has shut the app down.