Pakistani officials said on Sunday Pakistan had closed crossings along the 2,600-km border with Afghanistan, local officials said.
The two main border crossings with Afghanistan, at Torkham and Chaman, and at least three minor crossings, at Kharlachi, Angoor Adda and Ghulam Khan, were closed on Sunday, Reuters reported.
Dozens of fighters were killed in overnight border clashes between Pakistan and Afghanistan, both sides said on Sunday, in the most serious fighting between the neighbours since the Taliban came to power in Kabul.