By CNN's Rachel Streitfeld and Kevin Liptak
Sen. John McCain visited rebels in Syria on Monday, his communications director confirmed to CNN, making the Arizona Republican the highest ranking elected official from the United States to visit the war-torn country.
Brian Rogers confirmed a report that originally appeared on The Daily Beast, which indicated McCain entered Syria through Turkey, and remained in the country for several hours.
While in Syria, McCain met with Gen. Salem Idris, the leader of the Supreme Military Council of the Free Syrian Army, according to the Daily Beast. He also met with other rebel leaders who traveled the country to meet him.
McCain is the leading voice in Congress for a greater U.S. role in ending Syria's civil war, which has been waged for more than two years. He has suggested establishing "safe zones" for Syria's rebels and taking out the regime's air assets, along with providing lethal weapons to Syria's opposition.