JTA — Several European carriers canceled flights to Tel Aviv on Wednesday as turmoil over a potential US strike on Iran roiled the skies and elevated fears in Israel.

US President Donald Trump has threatened for days to intervene in Iran if the government proceeds with plans to execute protesters who have staged weeks of demonstrations against the autocratic religious regime there. Thousands of protesters have been killed in the streets, according to both government and opposition sources, and Tehran had planned the first execution of a protester arrested during the demonstrations on Thursday.

That execution was postponed amid sharp pressure from the United States, as signs piled up that Trump may plan to go forward with a military option against Iran. US planes have moved within the region, several countries, including the United States, have urged nonessential personnel to leave the region and Iran briefly closed its airspace on Wednesday night.

On Thursday, reports emerged that Gulf states had talked Trump out of an........

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