European leaders have warned against Ukrainian borders being redrawn by force – three days before Russia’s Vladimir Putin and US President Donald Trump are due to hold a summit on Ukraine in Alaska.

In a statement, European leaders said “the people of Ukraine must have the freedom to decide their future”.

It added the principles of “territorial integrity” must be respected and “international borders must not be changed by force”.

The statement was signed by 26 of 27 leaders. Missing from the signatories was Hungary’s leader Viktor Orban, who has maintained friendly relations with Russia and has repeatedly tried to block European Union support for Ukraine.