Israelis awaited word on how Prime Minister Benjamin Netanyahu would respond to Iran's first-ever direct attack on their country as international pressure for restraint grew amid fears of an escalation of conflict in the Middle East.

Netanyahu on Monday summoned his war cabinet for the second time in less than 24 hours to weigh a response to Iran's weekend missile and drone attack, a government source said.

Israel's military Chief of Staff Herzi Halevi said the country would respond. He provided no details.