Iran live updates: Trump to hold national security meeting Monday, officials say

No final decision has been made on whether Iran will attend the Pakistan ceasefire talks, a spokesman for Iran's Foreign Ministry, Esmaeil Baqaei, said on Tuesday.

"It is not due to indecision," he added, but rather due to "contradictory messages, inconsistent behavior, and unacceptable actions by the American side," he said in a phone interview on Iranian state TV.

"From the very outset, we have faced violations of the ceasefire by the opposing side, including measures such as a naval blockade," Baqaei said, adding that Iran will pursue a diplomatic track "whenever it determines that such a path serves its national interests."

United States Indo-Pacific Command (INDOPACOM) said in a post to X on Tuesday that American forces interdicted and boarded an Iran-linked cargo vessel overnight.

"U.S. forces conducted a right-of-visit, maritime interdiction and boarding of the stateless sanctioned M/T Tifani without incident in the INDOPACOM area of responsibility," the command said.

"We will pursue global maritime enforcement efforts to disrupt illicit networks and interdict sanctioned vessels providing material support to Iran -- anywhere they operate," the command's statement said."International waters are not a refuge for sanctioned vessels."

INDOPACOM posted video footage of the boarding operation, which showed helicopter-borne U.S. forces rappelling onto the deck of the Tifani.

President Donald Trump alleged that Iran had "Violated the Cease Fire numerous times!" in a social media post on Tuesday morning.

The president did not elaborate on what incidents his post referred to.

The two-week ceasefire announced by Trump on April 8 is due to expire on Wednesday.

Gen. Ali Abdollahi, the commander of Iran's Khatam al-Anbiya Central Headquarters -- the country's top joint military command -- said on Tuesday that Tehran is prepared to "respond decisively to the enemy's breach of promises," as quoted by the official Islamic Republic News Agency.

"The enemy is desperately seeking a ceasefire" due to the "crushing and destructive blows" of the Iranian missile and drone attacks, Abdullahi said.