Pakistan Prime Minister Imran Khan has assured Sri Lanka’s President Gotabaya Rajapaksa that there will be no mercy to the mob that lynched Sri Lankan national Priyantha Kumara Diyawadana over allegations of blasphemy, the President’s office said on Sunday.

Khan telephoned Rajapaksa and said that 118 people had been arrested so far, a statement from the President’s office said. “All the videos and information related to the incident have been obtained by the Pakistani security forces,” it said.

Angry supporters of the hardline Islamist party Tehreek-e-Labbaik Pakistan (TLP) attacked a garment factory in Sialkot district on Friday and lynched its general manager Diyawadana, who was in his 40s, before setting his body on fire over allegations of blasphemy.

As pressure mounted on the Pakistani government to bring the guilty to justice, over 800 people have been booked under terrorism charges. Thirteen prime suspects are among the 118 arrested so far.