Rocket sirens sounded in Israeli settlements in the Jordan valley in the occupied West Bank on Friday, the military said, and two Reuters witnesses heard an explosion a few minutes later.
It was unclear whether a rocket or rockets had landed or were intercepted and from where they were fired, an Israeli military spokeswoman said. There were no reports of casualties or damage and army forces were searching the area.
A Reuters witness in the central Israeli city of Modiin reported hearing an explosion and a more distant bang was heard from as far away as Jerusalem.
It appeared to be a relatively rare incident. Militants affiliated with the Daesh group in the Egyptian Sinai peninsula have also fired rockets into Israel on occasion.
Twitter users also noted that the West Bank town of Jericho was also potentially under threat.
Reports/israeli sources 2 rockets land in jordan valley & jericho in the West Bank https://t.co/W0nDZqIDGb
— Najla Shawa (@WhateverInGaza) March 17, 2017