During a brief visit to Tehran on Sunday, Syrian President Bashar al-Assad met with Iran’s supreme leader Ali Khamenei and President Ebrahim Raisi, according to Iranian official media.

“Assad has left Iran for Damascus after meeting separately with the supreme leader” and the president, the report said.

Iran is a major ally of Assad, backing him alongside Russia in Syria’s more than decade-long civil war.

Tehran has given financial and military support to the Assad regime during the 11-year war and says it has deployed forces in Syria at the invitation of Damascus but only as advisers.

The relationship between Tehran and Damascus is “vital for both countries and we should not let it weaken,” Khamenei said, according to a statement on his website.

“We should strengthen it as much as possible.”

Assad’s last reported visit to Iran was in February 2019 — and that was the first one since the start of the war.

Iran’s supreme leader also hit out at Arab nations that normalized relations with Tehran’s arch-nemesis Israel under the US-sponsored Abraham Accords.

“While leaders of neighboring countries hang out with those of the Zionist regime and drink coffee with them, the people of these countries take to the streets and chant anti-Zionist slogans on Quds (Jerusalem) Day,” Khamenei said.

The United Arab Emirates, Bahrain, and Morocco all normalized ties with Israel in 2020 breaking with decades of Arab consensus that there should be no recognition of the Jewish state in the absence of a peace agreement establishing a Palestinian state.

Israel has launched airstrikes in Syria on numerous occasions, focusing on areas where Iranian and pro-Tehran soldiers are alleged to be stationed.