UK Brexit: Theresa May to officially trigger Brexit process NOW

Rolling text and video coverage as the UK officially tells the European Union it is leaving.

1. Theresa May to trigger the official Brexit process in a letter to EU
2. Sir Tim Barrow, already in Brussels, to hand it over at 12:20 BST
3. Mrs May to address MPs at 12:30 BST
4. Two years of exit negotiations to follow

Source: Brexit: Theresa May to officially trigger Brexit process – BBC News