KABUL: Afghan authorities say a remote-controlled bomb has killed a former Afghan senator and three other people in the south of the country.

Fareed Ayal, who is the spokesman for the provincial police chief, says former senator Khairo Jan, a tribal elder named Sharafuddin and two bodyguards were killed as they were driving in Uruzgan province.

Jan is an elder of the Popalzai tribe, the same tribe that Afghan President Hamid Karzai is from.

Ayal says the blast occurred about 1:30 pm local time Saturday about six kilometers south of the provincial capital of Tirin Kot.

They were riding in a vehicle that was en route to Jan's village in an area known as Dayak.