An explosion injured at least seven people on Tuesday in Lower Kurram tribal region, a private news channel reported.
According to sources, the explosion occurred in a vegetable market in Sada bazaar area of Lower Kurram Agency. Seven people sustained injuries in the blast and were rushed to a local hospital. Three of the injured persons are said to be in a critical condition.
The cause of the blast has not been ascertained yet.
The blast site has been cordoned off by the police while a search operation to arrest the perpetrators in underway.