A fragile ceasefire in the Iran war faced new challenges on Sunday as drones of unknown origin set fire to a cargo ship off Qatar's coast and entered Kuwaiti airspace before dawn, authorities reported. Qatar and Kuwait confirmed that no casualties resulted from either attack.

Ceasefire Under Pressure

The incidents mark the latest threats to a month-old ceasefire, which the Trump administration insists remains in effect. Despite the pause in fighting, Iran has restricted traffic through the Strait of Hormuz, a crucial waterway for global oil flow, while the U.S. maintains a blockade of Iranian ports.

Washington is awaiting Iran's response to a new proposal aimed at ending the war, reopening the strait to shipping, and rolling back Iran's nuclear program. U.S. President Donald Trump has reiterated threats to resume full-scale bombing if Iran does not accept the agreement.

Ongoing Tensions and Nuclear Concerns

Iran has largely blocked the Strait of Hormuz since joint U.S.-Israeli strikes on February 28 launched the war, causing global fuel prices to spike and rattling world markets. A major sticking point in negotiations is the fate of Iran's stockpile of highly enriched uranium.

The U.N. nuclear agency reports that Iran possesses over 440 kilograms (970 pounds) of uranium enriched up to 60% purity, a short technical step from weapons-grade levels. Brig. Gen. Akrami Nia, a spokesman for the Iranian military, stated that forces are on "full readiness" to protect nuclear sites where the uranium is stored.

"We considered it possible that they might intend to steal it through infiltration operations or heliborne operations," Nia told the IRNA news agency, without providing further details.

Most of Iran's highly enriched uranium is likely still at its Isfahan nuclear complex, according to International Atomic Energy Agency Director-General Rafael Mariano Grossi. The Isfahan facility was bombarded by U.S.-Israeli airstrikes during the 12-day war last year and faced less intense attacks in this year's conflict.

Recent Naval Attacks

In Sunday's naval attack, Qatar's ministry of defense reported that a drone targeted a commercial ship coming from Abu Dhabi into a southern port, setting a small fire that was quickly extinguished. The United Kingdom Maritime Trade Operations Centre confirmed the attack occurred 23 nautical miles (43 kilometers) northeast of Qatar's capital, Doha, but provided no details on the ship's owner or origin. No group claimed responsibility.

Several attacks on ships in the Persian Gulf have occurred in the past week. On Friday, the U.S. struck two Iranian oil tankers, alleging they were attempting to breach the U.S. blockade of Iran's ports. Iran's Revolutionary Guard navy warned that any attack on Iranian oil tankers or commercial vessels would be met with a "heavy assault" on a U.S. base in the region and enemy ships.

Kuwaiti Airspace Incident

In Kuwait, Defense Ministry spokesman Brig. Gen. Saud Abdulaziz Al Otaibi stated that hostile drones entered Kuwait's airspace early Sunday. Kuwaiti forces responded "in accordance with established procedures," with no immediate reports of casualties. The ministry did not disclose the drones' origin.

Mediation Efforts Continue

Pakistan is continuing its mediation efforts during the ceasefire. Pakistani Prime Minister Shehbaz Sharif reported receiving a call from his Qatari counterpart, Sheikh Mohammed bin Abdulrahman Al Thani. The leaders discussed the evolving regional situation and reviewed ongoing peace efforts. Sharif wrote on X that the countries share "brotherly bonds" and expressed anticipation for an upcoming Qatari visit to Pakistan.