Dmitry Peskov

The announcement of the meeting was made Thursday by the Russian president's spokesman Dmitry Peskov and confirmed by the White House.

Putin is to speak Monday at the United Nations General Assembly. It was not immediately clear if the meeting with the U.S. President would take place before or after the speech. Peskov said Putin also is to meet Japanese Prime Minister Shinzo Abe on Monday.

Dmitry Peskov spoke in response to comments by Syrian Foreign Minister Walid al-Moallem, who denied reports that Russian combat troops were fighting with Syrian troops, but said Syria would ask for Russia's help if needed.

If such a request is made, it will be "discussed and considered," Peskov said.