Canada says tariffs bring 'wild west' to factory floors

It's approaching 16:00 in the London newsroom and midday in Washington. Trump is welcoming Ireland's Prime Minister, the Taoiseach Michéal Martin, at the White House after tariffs of 25% came into effect on all steel and aluminium imports to the US.

If you're just joining us, here's a brief look at the latest reaction around the world:

Canada's government has announced retaliatory tariffs on more than $20bn (C$29.8bn) worth of US goods. Industry Minister François-Philippe Champagne said the tariffs are "bringing the wild west to factory floors"
Meanwhile, Mexico's president took a different approach and said the government won't announce retaliatory measures yet
UK Prime Minister Sir Keir Starmer said he is "disappointed" by the levies and his government is "negotiating an economic deal" which covered tariffs. But, he stressed, the UK would "keep all options on the table"
This comes after the European Union said it would impose retaliatory tariffs on €26bn (£21.9bn, $28.3bn) worth of US goods. Commission President Ursula von der Leyen said the tariffs are "bad for business"
China would take "all necessary measures" to safeguard its rights and interests, the Chinese foreign ministry said earlier
We'll continue to bring you the latest developments so stick with us.