Sources said the attackers, armed with Kalashnikov rifles and pistols, targeted people who had gone to the area for recreation.
Among the victims were the local elder of Deh Mehri village and two of his sons, as well as three members of another family.
A list obtained by Afghanistan International shows that at least 21 people, including five women, were killed or injured in Deh Mehri alone, though it does not distinguish between fatalities and wounded.
Sources said several of the injured are in critical condition, while some others were discharged after receiving initial treatment.
They added that a delegation from Kabul is expected to travel to Herat, and Shia clerics will hold a meeting with the participation of a Taliban representative.
Another source said the Herat gold traders’ union plans to stage a strike in response to the killings.
No group has claimed responsibility, and the Taliban have not released details about the attack.
However, an eyewitness told Afghanistan International that the attackers were discussing “religious issues” among themselves.
Attacks on civilians, particularly Shia communities, are not new in Herat. In April 29, 2024, ISIS-affiliated gunmen opened fire on Shia worshippers at Imam Zaman Mosque in Guzara district, killing at least six people, including a woman and a child.
Human rights and international organisations have repeatedly expressed concern about the situation of Shia communities under Taliban rule.
Over more than four years in power, the Taliban have imposed restrictions on religious minorities, particularly Shias, institutionalising discrimination by obstructing their religious ceremonies.
In addition, Taliban laws and courts, based on Hanafi jurisprudence, have discouraged Sunni-Shia marriages and reportedly pressured Ismaili communities in some areas to abandon their beliefs.