Pakistan’s army chief Asim Munir speaks with U.S. President Donald Trump ahead of a planned trip to Tehran for talks, according to multiple Pakistani sources. The call, reported by several outlets, happens days before Munir is expected to hold discussions in Iran’s capital on Monday.

The reports say the timing comes as the United States threatens major economic sanctions targeting Iran and countries that trade with it. One common point across the coverage is that the call’s contents are not publicly detailed. Reuters-cited sources state it was previously unreported that such a conversation took place.

The White House Office of the Press Secretary does not immediately respond to requests for comment, leaving the subject matter unclear. While the outlets agree on the fact of the call and its timing, they do not provide additional confirmed information about what was discussed, or whether it relates directly to the upcoming Tehran negotiations.