The explosion took place at 4 pm at the Jamiat Ulema-e-Islam-Fazl workers' convention in Khar, the capital of Bajaur tribal district.
Police in Pakistan's restive Khyber Pakhtunkhwa province said on Monday that an initial probe has suggested that the banned terrorist group Islamic State is behind the suicide attack on a political convention of a hardline Islamist party that killed at least 46 people and injured over 100.
The attack targeted a Frontier Corps (FC) checkpost on the Mastung road in Quetta, the provincial capital, Deputy Inspector General of Quetta police Azhar Akram said.
A powerful 5.9-magnitude earthquake jolted a mountainous part of Pakistan's Balochistan province early on Thursday, resulting in collapse of several houses that left at least 22 people dead and over 300 others injured, officials said.
Pro-Taliban cleric Sufi Muhammad, who brokered a now-defunct peace deal between the authorities and insurgents, was arrested on Sunday in northwestern Pakistani city of Peshawar for his links to militants and his role in fomenting unrest in the lawless Swat valley. Sufi, who heads the banned Tehrik-e-Nifaz-e-Shariah Muhammadi, was arrested with his sons Ziaullah and Rizwanullah and an accomplice by a large police contingent during a raid in the City Town area of Peshawar.
Pak PM Imran Khan said the terror strike was an effort to 'sabotage' the country's economic projects
The attack is believed to be targeting the Shiite Hazara ethnic minority community.