TEHRAN  In Iran’s first official reaction to leaked State Department cables quoting Arab leaders as urging the United States to bomb Tehran’s nuclear facilities, President Mahmoud Ahmadinejad dismissed the documents as American psychological warfare that would not affect his country’s relations with other nations, news reports said.

The documents seemed to show several Arab nations, notably Saudi Arabia, Iran’s rival for influence in the Persian Gulf, displaying such hostility that King Abdullah repeatedly implored Washington to “cut off the head of the snake” while there was still time.

Nonetheless, Mr. Ahmadinejad said at a news conference on Monday that Iran’s relations with its neighbors would not be damaged by the reports.

“Regional countries are all friends with each other. Such mischief will have no impact on the relations of countries,” he said, according to Reuters.