Pakistan has begun placing more than 200 people in Quarantina near the Iranian border.
According to foreign news agency AFP, the announcement of the detention of these men in Quarantine came hours after Pakistan's decision to temporarily close its border with Iran.
Pakistani authorities have made the decision in view of the recent outbreak of the Coronavirus in Iran, fearing it could spread to Pakistan.
The government is also being accused of hiding the actual number of virus-infected and dead people in Iran, but Iranian officials have denied it.
The first case of the Coronavirus has been reported in another neighbouring country of Pakistan.
Authorities in the country's southwestern province of Balochistan have decided to keep these people in Quarantina after returning to Iran with more than 200 pilgrims and after brief meetings and talks with their other people.
"We have decided not to take any risks and keep all those returning from Iran under surveillance for the next 15 days," Najibullah Kambrani, assistant commissioner of Tufan Border Crossing, told AFP.
"250 people will be kept in Quarantina," he said.
Balochistan's secretary of health, Malik, confirmed the decision to keep people in Quarantine and estimated that the number would be 200 to 250.
"About 7,000 pilgrims have returned from Iran this month alone," he said.
It is understood that on February 23, Pakistan temporarily closed its border with the neighbouring country after the Coronavirus massacre in Iran.
Balochistan Home Minister Ziaullah Longo, speaking, confirmed the closure of the border with Iran, saying that the border was temporarily closed in view of the killings caused by the Coronavirus in Iran.
In addition, the Balochistan government had also announced a ban on the travel of pilgrims from Pakistan to Iran and the provincial interior ministry was directed to contact other provinces in this regard.
However, Minister for Religious Affairs Noorulhaq Qadri explained the closure of the neighbouring country temporarily, saying that the Pakistani government was not imposing a strict ban on visitors, only that people should carefully travel to Iran for a specific time.