TEHRAN, May 12 (Xinhua) -- Iran's Parliament Speaker Mohammad Baqer Qalibaf said on Tuesday that the United States has no other alternative but to accept the Iranian people's rights.

Iran's Parliament Speaker Mohammad Baqer Qalibaf answers a question at a press conference in Tehran, Iran, Nov. 27, 2024. (Photo: Xinhua)

He made the remarks in a post on social media X, after U.S. President Donald Trump on Monday dismissed Iran's Sunday response to a U.S. peace proposal and warned that the ceasefire between the two countries is "on massive life support."

Qalibaf said, "There is no alternative but to accept the rights of the Iranian people as laid out in the (Iran-proposed) 14-point proposal," warning that "any other approach will be completely inconclusive; nothing but one failure after another."

"The longer they drag their feet, the more American taxpayers will pay for it," he added.

In a Monday post on X, Qalibaf said Iran's armed forces are ready to make a "lesson-teaching" response to any aggression, stressing that "we are ready for all options," and "they (the Americans) will be surprised."

Iran sent its response to the latest U.S. proposed text for ending the war to the Pakistani mediator on Sunday.

Elaborating on Iran's peace proposal at a weekly press conference on Monday, Iranian Foreign Ministry spokesman Esmaeil Baghaei said the country has solely demanded its people's "legitimate" rights in it.

Iran, the United States and Israel reached a ceasefire on April 8 after 40 days of fighting that started with U.S.-Israeli joint attacks on Tehran and other Iranian cities on Feb. 28.

Following the truce, Iranian and U.S. delegations held one round of peace talks in Pakistan's capital of Islamabad on April 11 and 12, which failed to yield an agreement.

Over the past weeks, the two sides have reportedly exchanged several proposed plans outlining conditions for ending the conflict through Pakistan.