Police in Pakistan's restive Khyber Pakhtunkhwa province said on Monday that an initial probe has suggested that the banned terrorist group ISIS is behind the blast in pakistan on a political convention of a hardline Islamist party that killed at least 46 people and injured over 100, reported news agency PTI.

The attack took place on Sunday when more than 400 members of the conservative Jamiat Ulema Islam-Fazl (JUI-F) party, known for its links to hardline political Islam, had gathered for a meeting under a canopy in the town of Khar, which borders Afghanistan. "We are still investigating and gathering information on the Bajaur blast. The Initial probe shows that banned outfit Daesh (ISIS) was involved," Geo News quoted police officials as saying.