KABUL, Afghanistan — Suicide bombers attacked a Shia mosque in the western Afghan city of Herat on Tuesday, killing at least 20 people, officials said.
Gen. Ayoub Ansari, the police chief of Herat, said two armed attackers had entered the mosque, killing 20 worshipers and wounding more than 30 others.
Jailani Farhad, a spokesman for the province’s governor, said that at least one of the attackers had blown himself up. Mr. Farhad put the number of dead at 29, and the wounded at 64.
Images circulating on social media showed destruction inside the mosque, and bloodied victims being rescued.
There was no immediate claim of responsibility for the attack by any of the militant groups operating in Afghanistan. While the majority Sunni country has been relatively free of sectarian violence, members of an Islamic State offshoot have repeatedly targeted gatherings of Shiites.
Civilians continue to bear the brunt of the long war in Afghanistan, with close to 1,700 killed in the first six months of the year, according to the United Nations mission in the country.