The US House of Representatives has voted overwhelmingly to condemn President Donald Trump's decision to withdraw forces from northeast Syria, clearing the way for Turkey's offensive against US-allied Syrian Kurds.

The vote was 354 to 60 for the resolution, as dozens of Trump's fellow Republicans joined the majority Democrats in favour.

House Speaker Nancy Pelosi said a Democratic leaders' White House meeting was cut short after Trump had a "meltdown" over the vote.

I think that vote - the size of the vote, more than 2-1 of the Republicans voted to oppose what the president did - probably got to the president. Because he was shaken up by it," Pelosi told reporters.

"And that's why we couldn't continue in the meeting because he was just not relating to the reality of it."

She later said Trump had a meltdown.

Wednesday's vote underscored deep unhappiness in Congress over Trump's action, which many lawmakers view as abandoning Kurdish fighters who had been fighting alongside Americans to defeat Islamic State militants.

They also angrily denounced the release from prison of Islamic State fighters since Turkey's offensive began a week ago.

"That was a betrayal of our partners. It was a gift to Russia, a gift to Iran, a gift to ISIS (Islamic State) and a gift to (Syrian President Bashar al-) Assad," said Representative Eliot Engel, the Democratic chairman of the House Foreign Affairs Committee, who sponsored the resolution.

Separately on Wednesday, congressional and committee leaders from both parties were meeting with Trump at the White House to discuss his Syria policy.

The resolution backed by the House opposes Trump's decision to remove the troops and calls on his administration to present a "clear and specific" plan for the enduring defeat of ISIS (Islamic State).

It also calls on Turkish President Tayyip Erdogan to immediately end the offensive, seeks continued US support for Syrian Kurdish communities through humanitarian support and also calls on the United States to work to ensure that Turkey's military acts with restraint.