Over the past few decades, millions of Afghans fled to escape violence in the country and oppression from the Taliban, with many going to neighboring Pakistan. Now, the tables are turning and Afghanistan is returning the favor. From the BBC:

Thousands of Pakistanis have fled into Afghanistan with the security situation deteriorating in Pakistan's tribal regions over the past week.

Hundreds of families, comprising some 6,000 mainly women and children, have been crossing the border.

The UN refugee agency says clashes between Pakistan's Shia and Sunni groups have forced people to flee.

It is the first time so many people have crossed this way as for years it was Afghans fleeing fighting.