(JNS) Amid increasing tensions between the United States and Iran, U.S. President Donald Trump warned that Tehran will “suffer greatly” if “they do anything.”

“We’ll see what happens with Iran. … If they do anything, they will suffer greatly,” Trump told reporters in the Oval Office in response to reports that two oil tankers owned by Saudi Arabia and two others, one owned by the United Arab Emirates and another by Norway, were sabotaged, possibly by Tehran.

“It’s going to be a bad problem for Iran if something happens. I can tell you that,” said Trump. “They’re not going to be happy. They’re not going to be happy people.”

The president did not elaborate on the threat, saying, “You can figure it out yourself. They know what I mean by it.”