Heightened security measures have been put in place in Islamabad amid expectations of a second round of talks between the United States and Iran.

Although no date has been officially announced, authorities anticipate that delegations from both sides could begin arriving early next week.

The potential talks have taken on added significance after US President Donald Trump indicated he could visit Islamabad if a comprehensive agreement is reached with Iran.

Authorities have begun extensive security preparations in the city.

On Sunday, the management of Islamabad’s Marriott Hotel asked guests to vacate the premises by 3pm.

In a notice issued by the hotel’s management, it said the Government of Pakistan had booked the entire property for an “important event” from Sunday afternoon, requesting all guests to leave by the specified time.

The management apologised for the inconvenience and said it would assist guests with alternative arrangements.

Separately, the deputy commissioner of Rawalpindi ordered the suspension of public and goods transport from Sunday until further notice.

Meanwhile, the Serena Hotel, which hosted the first round of US-Iran talks, has also stopped taking reservations for the coming days. When contacted for bookings, hotel staff said no rooms were available.

Security has also been tightened in areas near Noor Khan Airbase, where housing societies are under a near lockdown, with a significant deployment of police personnel in streets and neighbourhoods.