With help of helicopter, officials establish contact with last of the Israeli tourists put out of reach by monsoon rains

Ambassador holds assessment with rescue groups ahead of forecast for further rains; No Israelis reported hurt, but destroyed infrastructure making establishing contact difficult

Deputy ambassador dispatched to stricken region to try to track down missing travelers; no reports of injuries among Israelis

Cells with links to Al-Qaeda, Islamic State said possibly planning attacks on synagogues, groups of Israelis; could try to kidnap backpacker

Jerusalem said to be working with Indian counterparts to thwart any potential attack; security increased at embassy, synagogues and other sites

Indian officials have called for tourists to evacuate area as security tensions escalate