Talks between the United States and Iran on a possible second round of negotiations are still under discussion, with officials indicating that a meeting could take place as early as Thursday, a media report said on Tuesday.

Two US officials, speaking on condition of anonymity due to the sensitivity of the matter, said key details — including the venue, timing and composition of delegations — have yet to be finalised, according to Arab News.

Separately, Reuters said negotiating teams from the US and Iran could return to Pakistan later this week to resume negotiations to end the war in the Gulf.

There was no immediate confirmation from US ​officials about the plans, which the Iranian and Pakistani officials discussed on condition of anonymity.

A source who ​has been involved in the talks said a proposal had been sent to Washington and Tehran ⁠for the delegations to return to Islamabad to resume discussions.

No date had yet been decided, but both countries could ​return as early as the end of this week.

An official at the Iranian embassy in Islamabad said, “The coming rounds ​of talks can come sometime later this week or earlier next week. But nothing is finalised as of now.”

Earlier, a senior Iranian source told Reuters: “No firm date has been set, with the delegations keeping Friday through Sunday open.”

A senior Pakistani official said Islamabad had ​reached out to Iran, “and we got a positive response that they will be open to a second round ​of talks”.

The official and a second Pakistani source said Islamabad was communicating with both sides about the timing of the next ‌round, ⁠and the meeting would be likely to take place over the coming weekend.

Pakistan has proposed hosting the next round of talks in Islamabad in the coming days, ahead of the expiry of the current ceasefire, Pakistani officials said.

They noted that the proposal remains flexible and could change if both sides prefer an alternative location.

One Pakistani official said the initial round of talks, although inconclusive, should be viewed as part of an ongoing diplomatic process rather than a one-off effort.

Another official told Al Jazeera that Pakistan remains committed to facilitating dialogue for “as many rounds as it takes” to help secure peace, adding that communication between all parties is continuing.