By Saeed Shah ISLAMABAD (Reuters) -Separatist and jihadist militants on the Pakistan-Iran border could take advantage of any collapse of authority in Iran, fears that Pakistan’s army chief pressed in a meeting this week with the U.

As Israeli attacks on Iran, and Tehran’s retaliatory strikes, enter their sixth day, the deepening conflict is sparking fears in Islamabad, say analysts, rooted in its complex ties with Tehran and the even greater unease at the prospect of the Israeli military’s aerial influence extending close to the Pakistani border.

Some of the militant groups on the border have welcomed the upheaval. Jaish al-Adl (JaA), an Iranian jihadist group formed from ethnic Baluch and Sunni Muslim minorities and which operates from Pakistan, reportedly said Israel’s conflict with Iran was a great opportunity.