By Asif Shahzad ISLAMABAD (Reuters) – Pakistan on Saturday demanded a joint probe into a missile India said it accidentally fired into its territory, rejecting New Delhi’s decision to hold an internal inquiry into the incident and calling on the international community to play a role. “Such a serious matter cannot be addressed with the simplistic explanation proffered by the Indian authorities,” Pakistan’s foreign office said in a statement. “Pakistan demands a joint probe to accurately establish the facts surrounding the incident,” it added. India said on Friday it had accidentally fired the …