At least 18 people have been killed as Taliban insurgents detonated truck bombs and fired rocket-propelled grenades outside the office of Afghanistan's spy agency and a police compound in the central town of Ghazni.
More than 150 people were wounded in the attack, Reuters reported.
Ghazni provincial governor Musa Khan Akbarzada said a group of 19 insurgents was involved in the simultaneous attacks on the local office of the National Directorate of Security and a quick reaction team housed in the police building.
The men armed with light machine guns drew up in trucks at a back gate of the NDS, the crack US-trained agency leading the fight against the insurgency, and the police building early on Thursday and exploded their bombs.
“The bombs were so powerful that many civilians were wounded because of falling roofs and shattering of windows in their homes," Akbarzada said.
Soon after, several of the attackers entered the NDS compound and fought a gunbattle with Afghan forces.
Dozens of the wounded were taken to a lone hospital in Ghazni where doctors were forced to treat many of them outside.
The attack in Ghazni, one of the provinces that surround the capital city of Kabul, is the latest in a series of offensives launched by the Taliban in the summer fighting season.
Insurgents have carried out complex attacks on government installations, including in Logar and Wardak provinces which are the gateways to the heavily guarded national capital.