U.S. Sen. Amy Klobuchar is in the midst of a four-day swing through Israel, Jordan and Turkey to meet with foreign leaders, assess U.S. aid programs and see the refugee crisis caused by Syria's civil war.

"The focus of the senator's visit is on national security and the conflict in Syria," said spokeswoman Brigit Helgen.

Klobuchar and several other senators were scheduled to meet with Israel Prime Minister Benjamin Netanyahu, Jordan's King Abdullah II and Turkish business leaders. They will also tour a refugee camp in Jordan housing about 400,000 Syrians.

Democrat Kristen Gillibrand of New York and Republicans Lindsey Graham of South Carolina and John Hoeven of North Dakota are among the other senators on the trip. The delegation is expected to return Saturday.