U.S. accuses Pakistan of sheltering Iranian aircraft at Nur Khan airbase

Pakistan’s mediator role just got a lot messier. The basic allegation is simple — U.S. officials told CBS News that Iran moved aircraft into Pakistan, including to Nur Khan airbase near Rawalpindi, after the April 8 ceasefire, partly to keep them out of reach of possible U.S. strikes. Pakistan says that is nonsense and says the aircraft were there for diplomacy, not protection. The reason this matters is bigger than a few parked planes. Pakistan had spent weeks selling itself as the channel keeping Washington and Tehran talking, and neutrality is the whole value of that job. ### What is the actual claim? The CBS report says multiple Iranian aircraft arrived at Pakistan Air Force Base Nur Khan days after President Donald Trump announced the ceasefire in early April. U.S. officials framed that as an effort to preserve some of Iran’s surviving air assets while the war had paused but not really ended. The report also says Iran sent civilian aircraft into Afghanistan at roughly the same time. (cbsnews.com) ### Why does Nur Khan matter? Nur Khan is not some obscure strip in the desert. It is a strategically important Pakistani airbase just outside Rawalpindi, beside the country’s military and political core. That makes the allegation more explosive — not because the planes could be hidden easily, but because parking them there would imply state-level approval at a highly sensitive facility. Pakistan leans on that same visibility in its defense, arguing a “large fleet” could not be secretly tucked away in the middle of a major urban area. (cbsnews.com) ### What evidence got named publicly? One detail keeps coming up because it is unusually specific: an Iranian Air Force RC-130, a reconnaissance and intelligence-gathering version of the C-130. That gives the allegation more weight than a vague claim about “some planes.” But the catch is that the public case is still mostly built on anonymous U.S. officials, not satellite imagery or a released manifest. So the story is strong enough to hurt diplomatically, but not yet strong enough to close every factual gap. (cbsnews.com) ### What does Pakistan say happened? Pakistan’s foreign ministry confirmed that Iranian aircraft were in the country, but says they arrived during the ceasefire for diplomatic logistics tied to talks in Islamabad. Pakistan also says U.S. aircraft used the same base and that the flights were there to move delegations, security teams, and support staff around the negotiations. In other words, Islamabad is not denying the planes were present. It is denying the motive U.S. officials assigned to them. (cbsnews.com) ### Why is this so damaging now? Because Pakistan’s big diplomatic win was the claim that it helped broker the April 8 ceasefire and then hosted senior U.S.-Iran talks in Islamabad on April 11. That role only works if both sides believe Pakistan is passing messages honestly and not quietly tilting toward one camp. Once Washington starts wondering whether Islamabad was helping Iran preserve military assets — or even softening Iran’s position in transit — the mediator brand starts to crack. (cbsnews.com) ### Is the ceasefire itself in trouble? Yes — and that is why this story is landing so hard. By May 12, Trump was calling the month-old truce “on life support” and dismissing Iran’s latest peace proposal in harsh terms. So this is not just a side scandal. It lands at the exact moment the ceasefire already looks fragile, which means any doubt about Pakistan’s role can directly complicate the next round of talks. (aljazeera.com) ### What is the bottom line? The narrow fact pattern is still disputed — Iranian aircraft were there, but the reason is contested. The larger political effect is already here. Pakistan wanted to be the trusted middleman between Washington and Tehran. Now it has to prove that “host” did not also mean “shield.” (cbsnews.com) (aljazeera.com)