“The main concern of the late (founder of the Islamic Republic) Imam Khomeini was always fighting against Israel and defending Palestine,” Velayati said, addressing a ceremony to mark the International Quds Day due to be held this Friday.

Imam Khomeini pursued the issue of Palestine 13 years before Iran's 1979 Islamic Revolution, he said, adding that after the victory of the revolution, the members of the Israeli embassy were expelled and the embassy was handed to its rightful owners, the Palestinians.

Iran will continue the path of Imam Khomeini and Supreme Leader of the Islamic Revolution Ayatollah Seyyed Ali Khamenei to support the Palestinian nation, he noted.

He further emphasized that the only way to liberate the holy Quds is unity and solidarity among Muslims.

Back in January, Supreme Leader of the Islamic Revolution Ayatollah Seyyed Ali Khamenei underlined Iran's determination to continue support for the Palestinian cause.

"The Islamic Republic of Iran will remain resolved (in its support) until the day that the cause of Palestine is materialized," Ayatollah Khamenei said in a meeting with Head of Popular Front for the Liberation of Palestine–General Command (PFLP-GC) Ahmed Jibril in Tehran.

The Leader also noted that the issue of Palestine is among the top issues of the entire Muslim world.

Each year, the International Quds Day is celebrated on the last Friday of the holy Muslim month of Ramadan.

The event’s overarching theme is support for the Palestinians and fierce denunciation of Israel.

The day is also seen as the legacy of the late founder of the Islamic Republic of Iran, Imam Khomeini, who officially declared the last Friday of Ramadan as International Quds Day back in 1979.