JALALABAD, Afghanistan (AP) — Afghan forces said they retook a prison in the country’s east on Monday afternoon, following an hours-long battle a day after the facility was targeted by the Islamic State group in an attack that killed 29 people. The prison is believed to be holding hundreds of IS members. The attack highlighted the challenges ahead for Afghanistan, even as U.S. and NATO forces begin to withdraw following America striking a peace deal with the Taliban. Defense Ministry spokesman Fawad Aman said the prison was taken back in the afternoon. The fighting also left at least 50 wounded. Even as Afghan troops seized the prison in Jalalabad, the capital of Nangarhar province, some 115 kilometers (70 miles) east of Kabul, IS militants continued to fire on Afghan security forces from a nearby neighborhood. Sporadic gunfire rang out from nearby residential buildings in central Jalalabad, an area of high security near the provincial governor’s office. As security forces swept through the prison, they found the bodies of two Taliban prisoners apparently killed by the Islamic State group, showing the tensions between the two militant factions battling each other in eastern Afghanistan. The 29 dead included civilians, prisoners, guards and Afghan security forces, said Attaullah Khogyani, the provincial governor’s spokesman. The attack began Sunday, when an Islamic State suicide bomber drove a car laden with explosives up to the prison’s main gate, detonating the bomb. Islamic State militants opened fire on the prison’s guards and poured in through the breach. The IS affiliate in Afghanistan, known as IS in Khorasan province and headquartered in Nangarhar province, later claimed responsibility for the attack. Some of the 1,500 prisoners held at the prison in Jalalabad escaped during the fighting. Khyogyani said about 1,000 prisoners who earlier escaped had been found by security forces across the city. It wasn’t immediately clear if any prisoners were still at large. The attack came a day after authorities said Afghan special forces killed a senior Islamic State commander near Jalalabad. Several hundred prisoners in Jalalabad are believed to be Islamic State members. While the Islamic State group has seen its so-called caliphate stretching across Iraq and Syria eliminated after a yearslong campaign, the group has continued fighting in Afghanistan. The extremists also have battled the Taliban in the country, whom the U.S. overthrew following the 2001 American-led invasion after the Sept. 11 attacks. The Taliban’s political spokesman, Suhail Shaheen, told The Associated Press that his group was not involved in the Jalalabad attack. The US struck a peace deal with the Taliban in February. A second, crucial round of negotiations between the Taliban and the political leadership in Kabul has yet to start. The Taliban had declared a three-day cease-fire starting last Friday for the major Muslim holiday of Eid al-Adha. The cease-fire expired at 12 am Monday, though it wasn’t immediately clear if it would be extended as the US pushes for an early start to intra-Afghan negotiations that have repeatedly been delayed since Washington signed the peace deal with the Taliban. “We have a cease-fire and are not involved in any of these attacks anywhere in the country,” Shaheen said. The Taliban also had denied being involved in a suicide bombing in eastern Logar province late Thursday that killed at least nine people and wounded 40. Afghanistan has seen a recent spike in violence, with most attacks claimed by the local IS affiliate. By RAHMAT GUL and RAHIM FAIEZ Faiez reported from Kabul, Afghanistan. Associated Press writer Kathy Gannon in Islamabad contributed to this report. Image: An Afghan security person takes position in front of a prison after an attack in the city of Jalalabad, east of Kabul, Afghanistan, Monday, Aug. 3, 2020. An Islamic State group attack on the prison in eastern Afghanistan holding hundreds of its members raged on Monday after killing people in fighting overnight, a local official said. (AP Photo/Rahmat Gul)