Hawzah News Agency - (Tehran - Iran) - Leader of the Islamic Revolution Ayatollah Seyyed Ali Khamenei has underlined the need for a ban on negotiation with the US, saying it is one of the ways to block the American infiltration.

A repeated ban on negotiation with the United States is one of the important means to block their infiltration into our dear Iran," the Leader said in a meeting with university students in Tehran Sunday.

"This prohibition has a strong logic: it will block the way of the enemy's infiltration, display the Islamic Republic's impressiveness to the world, and shatter America's false aura before the world," the Leader said Sunday in a meeting with university students.

The meeting came ahead of the 40th anniversary of the US embassy takeover in Tehran by Iranian students who feared a plot was being hatched at the compound to overthrow the nascent Islamic Republic.

Many of the sentiments which boiled in 1979 remain today amid escalating tensions between Tehran and Washington, following the US withdrawal from the 2015 nuclear deal and subsequent sanctions that have hit ordinary Iranians hard.

Ayatollah Khamenei touched on the history of the US enmity which began with the 1953 coup against Iran's democratically-elected government, saying the Americans bore a grudge against Iran even when the two countries were allies.

"From the beginning of their relations with Iran, the Americans, with seemingly friendly plans, continued to feud with the Iranian nation. This enmity became public with the coup d'état on August 19, which is the beginning of America's public hostility with Iran," the Leader said.