Reuters has claimed that a United States attack on Iran is “imminent,” citing anonymous sources. Iran has already said that it would retaliate if the U.S. decides to interfere in its affairs.

Earlier this week, the U.S. ruler stated that his administration was “looking at some very strong options” that could be used against the Islamic Republic.

Iran’s Warning: It Will Strike U.S. Bases If Trump Interferes In Protests

A U.S. official, speaking on condition of anonymity, said the United States was withdrawing some military personnel from key bases in the region as a precaution amid heightened regional tensions. “All the signals are that a U.S. attack is imminent, but that is also how this administration behaves to keep everyone on their toes. Unpredictability is part of the strategy,” a Western military official told Reuters later on Wednesday.

Donald Trump did not rule out potential U.S. military action, saying “we are going to watch what the process is” before noting that his administration had received a “very good statement” from Iran.

Should Iran conduct large-scale executions of protestors, Trump said the U.S. would interfere, causing a warning to come out of Tehran. But the ruler also told reporters that he has been told that the killings in the Iranian government’s crackdown on the protests were subsiding and that he believes there is currently no plan for large-scale executions.

When asked who told him that the killings had stopped, Trump described them as “very important sources on the other side,” without elaborating further.

However, according to a report by Reuters, which cited two unnamed European officials, “US military intervention could come in the next 24 hours.” Reuters also quoted an unnamed Israeli who said that Trump appears to have decided in favor of attacking Iran, though the scope of the potential military action remains unclear.