At least 16 people, including three women and two children, were killed in a fresh sectarian clash in Pakistan's northwest.
A convoy of Sunnis was travelling under the protection of paramilitary soldiers on Saturday when they came under attack.
"As a result, 14 people, including 3 women and 2 children, were killed, and six others were wounded," a senior Kurram administration official said.
Afterwards, frontier police responded and killed two of the attackers, who were identified as Shiites.
Other recent clashes in July and September killed dozens of people and ended only after a jirga, or tribal council, called a ceasefire.
Officials are attempting to broker a fresh truce.
Tribal and family feuds are common in Pakistan. However, they can be particularly protracted and violent in remote areas of Khyber Pakhtunkhwa, where communities abide by traditional tribal honor codes.
The Shiite community in Pakistan, a predominantly Sunni Muslim country, has long suffered discrimination and violence.
