Casualties are increasing as Turkey presses on with its cross-border offensive on Kurdish-held areas of northern Syria.
A No 10 source says a Brexit deal is "essentially impossible" after a call between the PM and Angela Merkel.
President Donald Trump has threatened to destroy Turkey's economy if the country goes "off limits"
The US says it is stepping aside for an imminent Turkish operation against Kurdish-led forces within Syria that have until now been a key US ally.
Texts released by Democrats in Congress reveal how US officials worked to push the Ukrainian president