Pakistani and Afghan forces exchanged multiple cross-border attacks on Friday, each claiming to have killed dozens of the other side’s troops in the deadliest fighting yet between the neighbors, a conflict Islamabad has declared an “open war.”

The clashes, now in their ninth day, have continued despite repeated international calls for restraint. A suicide car bombing in North Waziristan, near the Afghan border, killed one civilian and injured 18 others, with suspicion likely falling on the Pakistani Taliban (TTP).

Afghanistan’s Taliban-run Defense Ministry said its forces destroyed several Pakistani military posts along the border in Nangarhar, Kandahar, Kunar, Paktia, and Khost, killing dozens of Pakistani soldiers. Meanwhile, Pakistani state media reported heavy losses inflicted on Afghan forces and the TTP by airstrikes and ground operations, without specifying numbers.

Islamabad has accused the Afghan Taliban of sheltering the TTP, a claim Kabul denies, and says military operations will continue until Afghanistan curbs militants operating from its territory.

The clashes have displaced roughly 115,000 people in Afghanistan and around 3,000 in Pakistan, according to the U.N.

The U.N. mission in Afghanistan has urged for a halt in the fighting, saying it’s worsening Afghanistan’s already grave humanitarian situation. The mission, known as UNAMA, said Friday on X that so far, 56 civilians have been killed inside Afghanistan.

Casualty claims vary widely: Afghanistan says 150 Pakistani soldiers have been killed since the fighting began, while Pakistan claims 527 Afghan soldiers dead. Independent verification is difficult due to the region’s inaccessibility and ongoing militant activity.

Efforts at mediation are underway: Turkey and Malaysia have offered to broker ceasefires, but a resolution remains uncertain following the collapse of a truce signed in Qatar and extended in Istanbul last year.