Afghanistan, April 26 -- U.S. Secretary of State Marco Rubio avoids Pakistan talks with Iran, as negotiations stall and tensions remain unresolved.

Financial Times reported that Marco Rubio may have deliberately avoided attending U.S.-Iran talks in Pakistan, as diplomatic efforts face uncertainty.

The report said Rubio chose not to travel to Pakistan for the negotiatoins, signaling caution within the United States as talks with Iran remain fragile and unresolved.

Stephen Walt suggested the decision may reflect concerns that senior U.S. officials do not want to be publicly associated with a potential diplomatic failure.

Recent talks in Islamabad have failed to produce a breakthrough, with both sides acknowledging deep differences over ke...