Thick black smoke billows from the explosion site.
A gas tanker exploded on Saturday at a customs post in Afghanistan on the Iranian border, local Afghan officials said, adding that scores of officials were assessing the damage caused by the massive fire.
A video circulating on social media showed thick black smoke billowing from a huge ball of fire.
There were no immediate reports of casualties.
Iranian media quoted an Iranian customs spokesman in the northeastern province of Khorasan as saying the blast had occurred around noon at the Islam Qala border customs post in Afghanistan.
On the other hand, Iran's President Hassan Rouhani warned on Saturday of a Covid-19 "fourth wave" as cases rise in certain areas of the Middle Eastern country hardest hit by the pandemic.
"This is a warning for all of us," Rouhani said in televised remarks.
He said some cities in the southwestern province of Khuzestan were now "red" -- the highest on Iran's colour-coded risk level -- after weeks of low alert levels across the country.
"This means the beginning of moving towards the fourth wave. We all have to be vigilant to prevent this," Rouhani added.
The country of more than 80 million people has lost close to 59,000 lives out of more than 1.5 million cases of Covid infection.
Iran has officially registered less than 7,000 daily infections since late December, but the number has crossed this level since early February.
The Taliban deny harbouring Pakistani militants, but are also infuriated by a fence Islamabad is erecting along their 2,700-kilometre (1,600-mile) border, drawn up in colonial times and known as the Durand Line.
A health source said hospitals had received 66 dead bodies and 78 wounded people so far. Emergency Hospital in downtown Kabul said it was treating 21 patients and two were dead on arrival.
Chanting the same "Women, life, freedom!" mantra used in demonstrations in Iran, about 25 Afghan women protested in front of the Iranian embassy in Kabul, before being dispersed by Taliban forces firing in the air, an AFP correspondent reported.
Officials have said that the task of moving 50,000 metric tonnes of wheat to Afghanistan would require 5,000 trucks via Pakistan. The logistics suggest that Indian trucks would require the wheat to be unloaded and loaded again into Afghan trucks at Zero Point on the Wagah-Attari border.
The fire broke out in the early hours of Sunday in Teatre nightclub in Atalayas, on the outskirts of the city, emergency services said on social media platform X.
An Azerbaijani presidency spokesman told AFP that a "UN mission arrived in Karabakh on Sunday morning" — mainly to assess humanitarian needs, the first time in around 30 years that the international body has gained access to the region.
Turkey’s interior affairs minister said a suicide bomber detonated an explosive device near his ministry on Sunday, while a second assailant was killed in a shootout with police.
In a statement on the occasion of the magazine’s 50th anniversary, which falls on 1st October, 2023, His Highness Sheikh Mohammed said the publication of the first issue of Al Jundi magazine in 1973 marked "the birth of a reliable source of military media content.”