KHOST, Afghanistan — At least 29 people were killed when suicide bombers disguised in women’s clothing stormed a Shiite mosque in eastern Afghanistan during Friday Prayer, officials said, the latest in a series of bloody attacks on the country’s Shiite minority.

Two male attackers, wearing full-length burqas to hide explosive vests and automatic weapons, entered the mosque in the city of Gardez in Paktia Province, first firing at the worshipers and then detonating the vests, according to the Afghan police.

The spokesman for the Paktia police, Sardar Wali Tabasoom, said that guards had been posted at the mosque because of fears of such an attack. But the attackers used the burqas to get close, then shot the guards, he said.

Abdullah Hasrat, the spokesman for the governor of Paktia Province, said that 29 people were killed and 81 others wounded.