FILE PHOTO: French President Emmanuel Macron and Hungarian Prime Minister Viktor Orban (not pictured) talk to the media at the Elysee Palace in Paris, France October 11, 2019. REUTERS/Benoit Tessier

PARIS (Reuters) - France and the United States have agreed to remain in close contact over Turkey’s escalating campaign in northern Syria, French President Emmanuel Macron’s office said, adding that he had stressed the need to try to end the offensive in a phone call with his U.S. counterpart Donald Trump late on Friday.

“France and the United States, which share common concerns, will coordinate closely in the coming days,” the Elysee Palace said in a statement.

Turkey intensified its air and artillery strikes in northeast Syria on Friday, in a campaign against Kurdish militia that has raised the prospect of a humanitarian disaster and questions about Trump’s policy in the region.