Russia has military intelligence that shows that a U.S. drone was in Iranian airspace when it was shot down by Iran last week, Nikolai Patrushev, Secretary of Russia's Security Council, said on Tuesday in his opening remarks at a first-ever trilateral meeting with American and Israeli national security advisers in Jerusalem.

The U.S. claimed the drone was flying over international waters. Patrushev said evidence presented by the United States alleging Iran was behind attacks on ships in the Gulf of Oman was poor quality and unprofessional. 

Also speaking in Jerusalem, U.S. National Security Adviser John Bolton said President Donald Trump "has held the door open to real negotiations" with Iran on its nuclear program.

"All that Iran needs to do is to walk through that open door," Bolton said, ahead of talks with Israeli National Security Advisor Meir Ben-Shabbat and Secretary of the Russia's Patrushev on Iran and Syria.