Pakistan's foreign minister summoned the US ambassador after President Joe Biden said the country is "maybe one of the most dangerous nations in the world" as it has "nuclear weapons without any cohesion".
Biden made the remarks in a speech on Thursday.
Foreign Minister Bilawal Bhutto-Zardari said he was surprised by the comments. "As far as the question of the safety and security of Pakistan's nuclear assets are concerned, we meet all – each and every – international standard in accordance with the IAEA," he said at a press conference on Saturday.
The White House published a transcript of Biden's speech on its website.
Bhutto-Zardari said he didn't think the decision to summon the US ambassador would negatively affect relations with the United States and said officials could address any specific concerns Washington had on the nuclear programme.
Ties between Islamabad and Washington, once close allies, have just started to warm after some years of frosty relations, mostly due to concerns about Pakistan's alleged support of the Taliban in Afghanistan. Pakistan denies this support.
The foreign minister said worries about Pakistan's nuclear programme were not raised on his recent trip to Washington, where he held extensive meetings, including at the State Department.
India capped airfares on Saturday as hundreds of passengers gathered outside Bengaluru and Mumbai airports after IndiGo cancelled 385 flights on the fifth day of a crisis at the country's biggest airline that has crippled air travel.
Pakistan and Afghanistan exchanged heavy fire along their border late on Friday, officials from both countries said, killing at least five people amid heightened tensions following failed peace talks last weekend.
Negotiations on consolidating the US-backed truce in the war in Gaza are at a "critical" moment, Qatar's Prime Minister Sheikh Mohammed bin Abdulrahman al-Thani said on Saturday.
Residents in the Indonesian region of Aceh Tamiang climbed over slippery logs and walked for about an hour on Saturday to get aid, as the death toll from floods and landslides that hit Sumatra island this month rose to more than 900 people.
A railway hub near Kyiv was attacked during a large-scale Russian drone and missile attack that damaged the depot and railway carriages, Ukrainian state railway company Ukrzaliznytsia said on Saturday.