UK PM May signs Article 50 letter

UK's Prime Minister Theresa May has signed the Article 50 letter, which should be delivered by Tim Barrow tomorrow at 12:30 BST. Afterward, it's expected that EC's Donald Tusk will hold a press conference at 13:45 GMT.

At the time of writing, GBP/USD is trading at 1.2452, up 0.01% on the day, having posted a daily high at 1.2455 and low at 1.2446.