Clashes broke out Thursday night between Afghan security forces and Pakistani troops along the Durand Line in Mohmand Dara district in Nangarhar province, officials have confirmed. 

According to the Nangarhar governor’s spokesman Attaullah Khogyani, Pakistani troops opened fire on Afghan border police when they tried to stop the Pakistani soldiers from erecting a barbed-wire fence. 

Khogyani said clashes are ongoing and local residents in Ghoraki have fled the area. 

A border police source told Ariana News that at least one Afghan border policeman has been killed and three others wounded.

Almost eighteen hours into the Jalalabad prison attack, Afghan security forces are still trying to bring the situation under control and round up escaped prisoners. 

Officials have said that hundreds of prisoners who escaped during the attack have since been caught. 

Some prisoners who have been arrested told Ariana News that six attackers entered the prison and ordered them to leave. The prisoners were told that if they did not leave they would be killed by the assailants. 

A security source said that the prisoners who escaped include Taliban members, Daesh militants, and criminals.

The attack started just after 6.30 pm on Sunday night and has continued through the night and Monday morning. 

Daesh, which claimed responsibility, detonated a car bomb outside the prison on Sunday evening, blowing the gate open. Militants then stormed the facility.

In the ensuing gun battle, hundreds of prisoners escaped. 

It is believed, however, that Daesh militants took control of two prison towers earlier and that some prisoners have taken up arms and are fighting alongside the attackers. However, there has been no official confirmation of these reports. 

Nangarhar governor’s spokesman, Attaullah Khogyani, meanwhile said the death toll has risen to 21 and 43 wounded. 

He said the victims include prisoners, security forces, and civilians. 

Zahir Adil, a spokesman for the provincial health directorate, told Ariana News that 13 of those wounded are in a critical condition. 

This attack started just a day after Afghanistan’s intelligence services announced the Afghan special forces had killed a high-ranking Daesh member in an operation in eastern Afghanistan.

A statement late Saturday by the National Directorate of Security said the slain militant was Assadullah Orakzai, an intelligence leader for the IS affiliate (Daesh) in Afghanistan. The statement said he was killed near Jalalabad, the capital of Nangarhar province. IS has its headquarters in the province.

Orakzai was suspected of being involved in several deadly attacks against both military and civilian targets in Afghanistan.

At least 50 prisoners escaped from the Jalalabad prison during Sunday night's attack that started when a car bomb was detonated outside the facility's gate.

Security sources have said that at least 15 of the escapees have been recaptured.

This comes as security forces continue to battle militants who stormed the prison shortly after the 6:44pm explosion.

Meanwhile, a spokesman for the Nangarhar governor, Attaullah Khogyani, said two people have been killed and 24 wounded so far. The wounded have been taken to hospital where some are reported to be in critical condition.

The Taliban has denied any responsibility in the attack.

But officials have said a well-coordinated assault on Jalalabad has been carried out after a number of explosions were reported in the city after the initial prison car bomb.

A security official said earlier that rockets had been fired at the local airport. No further details were given.