Iranian Foreign Minister Mohammad Javad Zarif said on
Twitter on Friday that any military presence in the Gulf from outside the region would be a "source of insecurity" for
Iran, and Tehran would act to safeguard its security.
Washington is lobbying international partners to join a maritime security coalition at a time of heightened tensions with Iran.
"(The) Persian Gulf is a vital lifeline and thus nat'l security priority for Iran, which has long ensured maritime security," Zarif said in his tweet.