The reports could not be verified independently.

According to the army-aligned foreign ministry, the kindergarten was struck twice with missiles from drones.

Civilians and medics who rushed to the school were also attacked, it added.

Responding to reports of the attack in Kalogi, a spokesman for the UN children’s agency Unicef said: “Killing children in their school is a horrific violation of children’s rights.”

“Children should never pay the price of conflict,” Sheldon Yett added.

The agency, he said, urged “all parties to stop these attacks immediately and allow safe, unhindered access for humanitarian assistance to reach those in desperate need”.

The RSF accused the army of attacking the Adre crossing because it was used for the “delivery of aid and commercial supplies”.

According to the Sudan War Monitor, a group of researchers tracking the conflict, the attack caused civilian casualties and significant damage to a market.

The military did not immediately comment on the reports from Darfur.

Wedged between Sudan’s capital Khartoum and Darfur, the region made up of North Kordofan, South Kordofan and West Kordofan has been a frontline in the civil war.

The battle for the Kordofans – which have a population of almost eight million – has intensified as the army pushes towards Darfur.

Both sides have confirmed they exchanged fire overnight but each blamed the other for initiating the four hours of fighting.

Mosharraf Zaidi, a spokesperson for Pakistan’s Prime Minister Shehbaz Sharif, accused the Taliban of “unprovoked firing”.

The statement continued: “An immediate, befitting & intense response has been given by our armed forces. Pakistan remains fully alert & committed to ensuring its territorial integrity & the safety our citizens.”

Meanwhile, a Taliban spokesperson said Pakistan had “once again initiated attacks” and said it was “forced to respond”.

Residents on the Afghan side of the border said the exchange of fire started at around 22:30 (18:00 GMT) on Friday.

Footage from the area showed a large number of Afghans fleeing on foot and in vehicles.

Ali Mohammed Haqmal, head of Kandahar’s information department, said Pakistan’s forces had attacked with “light and heavy artillery” and civilian homes had been hit by mortar fire.

The latest clashes came less than two months after both sides agreed to a ceasefire mediated by Qatar and Turkey.

It ended more than a week of fighting in which dozens were killed – the worst clashes between Pakistan and the Taliban since the group returned to power in 2021 – though tensions have remained high.

The government in Islamabad has long accused Afghanistan’s ruling Taliban of giving shelter to armed groups which carry out attacks in Pakistan.

The Taliban government denies the accusation and has accused Pakistan of blaming others for their “own security failures”.

The Pakistan Taliban have carried out at least 600 attacks on Pakistani forces over the past year, according to the Armed Conflict Location & Event Data Project.

Last week delegations from both sides met in Saudi Arabia for a fourth round of negotiations on a wider peace settlement, but did not reach an agreement.

Sources familiar with the talks told BBC News that both sides had agreed to continue with the ceasefire.

[BBC]