A popular shopkeeper was stabbed to death by another Muslim in a "religiously prejudiced" attack hours after posting an Easter message on Facebook to "my beloved Christian nation".

Asad Shah, 40, a devout Muslim originally from the Pakistani city of Rabwah, had his head stamped on during a savage attack, according to one eyewitness.

Around four hours earlier the victim wrote online: "Good Friday and a very Happy Easter, especially to my beloved Christian nation.

"Let's follow the real footstep of beloved holy Jesus Christ and get the real success in both worlds."