HERAT, Afghanistan (AP) — Over the course of an hour on a recent night, the bus waiting in the Herat station filled with passengers. Mostly young men, they had no luggage, just the clothes on their backs, maybe a bag with some bread and water for the long road ahead of them.

That road is leading them to Iran.

Every day, multiple buses rumble out of Afghanistan’s western city of Herat, carrying hundreds of people to the border. There they disembark, connect with their smugglers and trek for days, sometimes crammed into pickup trucks bumping through wastelands, sometimes on foot through treacherous mountains in the darkness, eluding guards and thieves.

Once in Iran, most will stay there to look for work. But a few hope to go farther.

“We’re going to get to Europe,” said Haroun, a 20-year-old sitting in the bus next to his friend Fuad. Back in their village there is no work. “We have no choice, the economy here is a wreck. Even if it means our death on the way, we accept that.”

Afghans are streaming across the border into Iran in accelerating numbers, driven by desperation. Since the Taliban takeover in mid-August, Afghanistan’s economic collapse has accelerated, robbing millions of work and leaving them unable to feed their families. In the past three months, more than 300,000 people have crossed illegally into Iran, according to the Norwegian Refugee Council, and more are coming at the rate of 4,000 to 5,000 a day.

The European Union is now bracing for a potential swell in Afghans trying to reach its shores at a time when EU nations are determined to lock down against migrants in general.

So far, a post-Taliban surge of Afghan migrants to Europe hasn’t materialized. Afghan entries into the EU have “remained mostly stable,” according to an EU weekly migration report from Nov. 21. The report noted that some Afghans who arrived in Italy from Turkey in November told authorities they had fled their country after the Taliban takeover.

But a significant portion of migrants likely intend to stay in Iran, which is struggling to shut its doors. It already hosts more than 3 million Afghans who fled their homeland during the past decades of turmoil.

Iran is stepping up deportations, sending 20,000 or 30,000 Afghans back every week. This year, Iran deported more than 1.1 million Afghans as of Nov. 21 — 30% higher than the total in all of 2020, according to the International Organization for Migration. Those deported often try again, over and over.

In Afghanistan, the exodus has emptied some villages of their men. In Jar-e Sawz, a village north of Herat visited by The Associated Press, an elderly man was the only male left after all the younger men left.

One smuggler in Herat — a woman involved in the business for two decades — said that before the Taliban takeover, she was transporting 50 or 60 people a week into Iran, almost all single men. Since the August takeover, she moves around 300 people a week, including women and children.

“The country is destroyed so people have to leave,” she said, speaking on condition she not be named because of her work. “I feel like I’m doing the right thing. If some poor person asks me, I can’t refuse them. I ask God to help me help them.”

She charges the equivalent of almost $400 per person, but only about $16 up front, with the rest paid after the migrant finds work. The pay-later system is common in Herat, a sign that there are so many migrants, smugglers can accept some risk that some will be unable to pay. Along the way, smugglers pass out bribes to Taliban, Pakistani and Iranian border guards to turn a blind eye, she said.

Everyone going gives the same reason.