ISLAMABAD: In a sharp escalation following failed marathon negotiations with Iran, President Donald Trump has directly threatened China with big problems if it ships weapons to Tehran.
The warning came on Saturday as Trump departed the White House for Miami, responding to fresh US intelligence reports.
Beijing is reportedly preparing to deliver new air defence systems to Iran within the next few weeks, according to three sources familiar with recent assessments.
These include shoulder-fired anti-air missile systems known as MANPADS, which could pose a serious threat to low-flying aircraft.
Intelligence indicates China may route the shipments through third countries to conceal their origin.
Trump stated plainly that if China proceeds, it will face big problems regardless of any ongoing deal.
The remarks follow a fragile two-week ceasefire brokered earlier this month after six weeks of intense US-Israel military operations against Iran.
Pakistan played a pivotal mediation role, hosting marathon talks in Islamabad that stretched over 21 hours but ended without agreement.
Vice President JD Vance, leading the US delegation, confirmed no deal was reached as Iran rejected key American terms on its nuclear programme and regional security.
The failed negotiations have heightened fears that the ceasefire could collapse, reopening the possibility of full-scale conflict.
China had claimed a significant role in securing the initial truce, adding layers of complexity to the current standoff.
Trump's warning underscores Washington's determination to prevent any external military support from bolstering Iran's capabilities during this delicate period.
The Strait of Hormuz, a critical global oil chokepoint that Iran had agreed to reopen under the ceasefire terms, now faces renewed uncertainty.
Regional analysts warn that any arms flow could destabilise the entire Middle East and disrupt international energy supplies.
Pakistan continues to urge both sides to uphold the ceasefire despite the impasse in Islamabad.
Foreign Minister Ishaq Dar emphasised Islamabad's ongoing commitment to mediation efforts between Washington and Tehran.
The development comes amid broader US concerns over China's growing influence in the region through economic and strategic partnerships.
Beijing has denied the intelligence reports, calling them unfounded amid rising diplomatic friction.
Trump is scheduled to meet Chinese President Xi Jinping soon, where this issue is expected to dominate discussions.
The potential shipment marks an escalation in China's support for Iran since the outbreak of hostilities in February.
MANPADS systems, being portable and effective against aircraft, were highlighted as a particular asymmetric threat during the recent fighting.
US officials view the move as provocative, especially given the fragile nature of the current pause in hostilities.
The warning carries significant weight as Trump doubles down on his post-conflict posture against Iran.
Global markets are already reacting to the heightened tensions, with oil prices showing volatility amid fears of renewed disruptions.
Experts note that the failed Islamabad talks covered critical issues including nuclear safeguards and reopening of vital maritime routes.
Iranian state media blamed excessive US demands for the breakdown, while Vance described the outcome as bad news primarily for Tehran.
Pakistan's role as mediator has drawn international praise, positioning the country as a key player in de-escalation efforts.
The Trump administration maintains that the ceasefire remains intact for now but warns against any actions that could undermine it.
This latest development risks drawing major powers into a wider confrontation if not carefully managed.
Diplomatic circles in Islamabad are closely monitoring the situation, given Pakistan's strategic ties with both China and the United States.
The episode highlights the intricate web of alliances and rivalries shaping the post-ceasefire landscape.
As tensions simmer, the world watches whether Trump's stern message will deter further arms movements or spark new retaliatory measures.
The coming days could prove decisive for regional stability and global security.
