President Barack Obama says his administration is working with Congress to provide Jordan with an additional $200 million in aid this year.

Jordan's economic troubles have been made worse by the influx of more than 450,000 refugees fleeing the civil war across the border in neighboring Syria. The Syrians are crowding refugee camps in Jordan and overwhelming aid agencies run by the important U.S. ally in the Middle East.

The United States already is the largest single donor of humanitarian aid for the Syrian people.

Obama said Friday that the extra money, if approved by Congress, will help provide more humanitarian assistance and basic services.

He made the announcement during a news conference in Amman, Jordan, with King Abdullah II.