Militants in Afghanistan have set off a suicide blast and stormed a construction company near the airport in Jalalabad, the capital of eastern Nangarhar province, killing at least 16 people, officials say.
The dawn assault triggered an hours-long gunbattle with local guards, drawing in US forces to assist the Afghan troops in the shoot-out.
Along with the 16 killed, nine people were also wounded in the attack, according to Attahullah Khogyani, the provincial governor's spokesman.
No one immediately claimed responsibility for the attack but both the Taliban and the Islamic State group are active in eastern Afghanistan, especially in Nangarhar.
The two groups have been carrying out near-daily attacks across Afghanistan in recent years, mainly targeting the government and Afghan security forces and causing staggering casualties, including among civilians. The attacks have continued despite stepped-up U.S. efforts to find a negotiated resolution of the 17-year war, America's longest.
Wednesday's attack began around 5 am on Wednesday and five attackers were involved, Khogyani said. Two of them detonated their explosives, blowing themselves up, while the remaining three were killed in the shooting.
The attackers were on foot and after setting off a suicide blast at the company gates, the others stormed in, triggering a gunbattle that drew US forces to the scene, according to General Ghulam Sanayee Stanikzai, the provincial police chief.
"US forces are supporting Afghan forces in securing the area now," Stanikzai said.
It was unclear why the construction company, called MQ, was targeted. The attack was over by 10.30am when the last of the attackers was killed, Khogyani said.
