Photo/IllutrationIn this picture released by the official website of the office of the Iranian supreme leader, Supreme Leader Ayatollah Ali Khamenei, right, meets with Japanese Prime Minister Shinzo Abe, center, as Iranian President Hassan Rouhani sits at left, in Tehran on June 13, 2019. A portrait of the late Iranian revolutionary founder Ayatollah Khomeini hangs on the wall. (Office of the Iranian Supreme Leader via AP)

DUBAI, United Arab Emirates--Iran's Supreme Leader Ayatollah Ali Khamenei says that Tehran "will in no way repeat" negotiations with the U.S. amid tension over its unraveling nuclear deal with world powers.

Khamenei made the comment on Thursday, during a meeting with Japanese Prime Minister Shinzo Abe who traveled to Tehran as an interlocutor for U.S. President Donald Trump to ease tensions between Washington and Tehran.

But the comments by Khamenei could indicate that Abe's visit may not have succeeded.

Khamenei's official website quoted him as telling Abe: "I don't regard Trump as deserving any exchange of messages and have no response for him and will give no response."

Japan's Trade Ministry said that two oil tankers reportedly attacked near the Strait of Hormuz carried "Japan-related" cargo.

Thursday's comment came as Abe was wrapping up his two-day trip to Iran.

No one has claimed responsibility or explained how the tankers were attacked. However, the United States previously blamed Iran for an attack last month on four oil tankers close to the nearby Emirati port of Fujairah.

Meanwhile, Iranian state television reported that 44 sailors from the two tankers have been transferred to an Iranian port in the southern province of Hormozgan.