Four Taliban commanders were killed during separate airstrikes in Herat province on Sunday, the Ministry of Defense said Monday.

According to the ministry, Nabi Jan, Aqa Wali and Sayed Shah were killed in Pashtun Zarghun district.

The ministry said that Hafizulah, another Taliban commander in Herat province, was killed during an airstrike in Gulran district of Herat on Sunday.

The Taliban has not commented.

Security forces have intensified their operations in western provinces against the Taliban.

The 207 Zafar Army Corps said Sunday that security forces conducted operations along the Herat-Ghor highway and in eastern districts of the province, clearing the areas of insurgent fighters.

A commander said the Herat-Ghor highway has long been under Taliban control.

According to the military official, winter operations will continue in other areas as well.

Herat officials said that besides clearing operations along the Herat-Ghor highway, other eastern districts lacking security will also be cleared of insurgents.