Pakistan’s military has struck deeper into Afghanistan as border fighting intensifies and both sides claim to have inflicted heavy losses.

The airstrikes came hours after Afghan troops had attacked Pakistani border positions and follow months of worsening ...

The renewed violence between the neighboring countries stems from Pakistan’s accusations that Afghanistan’s Taliban government has harbored a militant group.

Pakistan bombed major Afghan cities and declared "open war" after Afghanistan's Taliban rulers claimed an unprecedented aerial attack on Islamabad.

Pakistan struck several sites in Afghanistan early Friday in what it calls an "open war." We look at what's driving the renewed fighting.