Pakistan Prime Minister Imran Khan said he is overseeing the investigations into the killing of a Sri Lankan national over blasphemy allegations in Sialkot and that those responsible will be punished with full severity of the law.

A mob in Sialkot brutally murdered the Sri Lankan man and set his body on fire over blasphemy allegations. Priyantha Kumara, the export manager of a private factory, was attacked by workers of the factory on Wazirabad road in Sialkot, Pakistan.

"The horrific vigilante attack on factory in Sialkot & the burning alive of Sri Lankan manager is a day of shame for Pakistan. I am overseeing the investigations & let there be no mistake all those responsible will be punished with full severity of the law. Arrests are in progress," the Prime Minister tweeted.