At least 23 security forces were killed in a Taliban attack on a joint US-Afghan base in southwestern Afghanistan’s Helmand province on Saturday, officials said. Omar Zwak, the spokesman for the provincial governor, said 20 other troops were wounded in the attack that began Friday and ended Saturday evening after a 40-hour battle in the Wahser district. The death toll could rise after a final assessment, added Zwak. It was the Taliban's third attempt to overrun the base in the past 48 hours, according to officials.
"The operation is over, 23 security forces killed, 15 injured and 20 insurgents killed." Ghafoor Ahmad Jawed, a spokesman for the Ministry of Defence said.
As many as 40 security forces may have been killed, according to a provincial official who spoke anonymously as he was not authorized to brief the media.
Zwak added that military vehicles and offices were damaged by blasts and shooting in the attack.
Qari Yusouf Ahmadi, a Taliban spokesman, said in a statement that the insurgent group was responsible for the attack, which came even as Taliban negotiators met for talks with a U.S. peace envoy in the Middle Eastern state of Qatar.
He said Taliban fighters engaged both Afghan and foreign forces inside the camp and killed "scores."
Zwak said U.S. advisers were present in the base, but in a separate area.
"The foreign forces present at the base were all safe as the Taliban could not reach that part of the compound," he said.
Zwak said the attack began when a suicide bomber detonated his explosives at Shorab camp.
He said three other suicide bombers also blew themselves up as gunmen followed behind them. Zwak said 22 Taliban gunmen were killed in the fighting.
In recent years, the Taliban and the Islamic State group have carried out near-daily attacks in Afghanistan, mainly targeting the government and its security forces.
The Taliban control several district centres in Helmand, which is a major source of the world's illegal opium supply.
Camp Shorab was previously a British air base known as Camp Bastion.
In northern Sari Pul province, Taliban ambushed a convoy of Afghan security forces, killing nine, said Zabihullah Amani, spokesman for the provincial governor.
Amani said 12 other forces were wounded during the battle with insurgents that lasted seven hours Friday in Sangcharak district. "Four security forces are missing and believe to be taken alive by the insurgents," he said.
The forces were just returning from an operation in the district when they came under heavy fire, Amani said.
Zabiullah Mujahid, a spokesman for the Taliban, claimed responsibility for the attack. Clashes between the Taliban and the government troops backed by foreign forces have not subsided even as the US and Taliban are holding talks in Qatar to seek a negotiated solution to end Afghanistan's long war.