ISLAMABAD, July 19 (Xinhua) -- At least four people were killed in an improvised explosive device (IED) blast in Pakistan's northwestern Khyber Pakhtunkhwa province, police said on Friday.
The blast occurred in South Waziristan district of the province, killing two people on the spot, while two other injured lost their lives on their way to a local hospital, said the police.
The explosive device was plant
