Roadside bombings in southern and central Afghanistan killed 13 people, including nine members of one family, officials said Thursday.

Iran PressAsia: Meanwhile, militants stopped a bus in western Afghanistan, ordered three men to get out, and shot and killed them.

No one has claimed responsibility for the latest attacks. The three men on the bus were ethnic Hazaras. The government blamed the Taliban, who denied responsibility. Previous attacks on Hazaras, who are mostly Shiite Muslims, have been claimed by the Islamic State group.

One of the two bombs struck a car carrying a family of 12 in southern Helmand province late on Wednesday, said provincial police spokesman Zaman Hamdarad. Several of the nine family members who died were children, he said.

The vehicle was traveling to the provincial capital of Lashkar Gah when it struck the bomb. The Nad Ali district where the explosion occurred is under Taliban control and Hamdarad said it is difficult to get information. Three wounded children were taken to the provincial hospital in Lashkar Gah, he said.

A second roadside bombing, in central Ghor province, destroyed a motorcycle carrying a family of four, all of whom were killed, said the province's governor, Abdul Zahir Faizzada.