On 16 February , Pakistan closed the border crossings at Torkham and Chaman due to security reasons following the Sehwan blast . On 7 March , the border was reopened for two days to facilitate the return of people to their respective countries who had earlier crossed the border on valid visas . The decision was taken after repeated requests by Afghanistan ’s government to avert ‘ a humanitarian crisis ’ . According to a Pakistani official , 24,000 Afghans returned to Afghanistan , while 700 Pakistanis returned to Pakistan , before the border was indefinitely closed again . On 20 March , Pakistani Prime Minister Nawaz Sharif ordered the reopening of Afghanistan – Pakistan border as a " goodwill gesture " , 32 days after it was closed
Sehwan blast
2017 Sehwan suicide bombing
Durand Line