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.

Israel unleashed airstrikes across Iran for a third day Sunday and threatened even greater force as some Iranian missiles evaded Israeli air defenses to strike buildings in the heart of the country.

U.S. Treasury yields were slightly higher early Monday as global markets continue to react to deadly air strikes being exchanged between Israel and Iran.