File Picture: U.S. President Donald Trump and Russia's President Vladimir Putin talk during the family photo session at the APEC Summit in Danang, Vietnam November 11, 2017. REUTERS/Jorge Silva

WASHINGTON (Reuters) - U.S. President Donald Trump spoke on Tuesday with Russian President Vladimir Putin and the two leaders stressed the importance of the U.N.-led peace process in resolving the Syrian civil war, the White House said in a statement.

In the more than hour-long phone call, Trump and Putin also agreed to explore ways to cooperate in the fight against militant groups such as Islamic State, the statement said. In addition, the two leaders discussed how to achieve peace in Ukraine and the need to keep pressure on North Korea to end its nuclear program, it said.