Alaska meet: 'Peacemaker' Trump says he wants to see Russia-Ukraine ceasefire rapidly

Aboard Air Force One: US President Donald Trump on Friday said he did not know what would make his summit with Russian President Vladimir Putin a success, saying he wanted to see a ceasefire.

Asked what would make the meeting a success, he told reporters aboard Air Force One: "I can't tell you that. I don't know. There's nothing set in stone. I want certain things. I want a ceasefire."

"I want to see a ceasefire rapidly... I'm not going to be happy if it's not today," he said, adding that Europe and Ukrainian President Volodymyr Zelenskyy would also be involved. "I want the killing to stop."