Angry supporters storm the United States embassy in Baghdad, Iraq, in response to the U.S. airstrike on Sunday against Kata'ib Hezbollah militants. Iraqi officials say the U.S. ambassador and staff have been evacuated, but the U.S. Army denies this. The U.S. ambassador is reportedly on holiday. U.S. President Donald Trump blames Iran for the attack.
A 5.9-magnitude earthquake strikes 60 km (35 miles) from Hashtrud, East Azerbaijan Province, in northwestern Iran, killing at least six and injuring more than 300. The United States Geological Survey warns that "significant casualties are likely and the disaster is potentially widespread".
Iranian Navy of the Islamic Revolutionary Guard Corps captures British tanker "Stena Impero" and temporarily seizes British-operated and Liberian-flagged tanker "Mesdar" in the Persian Gulf. British Foreign Secretary Jeremy Hunt says there will be "serious consequences" if Iran does not release the tanker.
Royal Marines seize control of an oil tanker off the coast of Gibraltar that was en route to Baniyas in Syria, suspected of breaching EU sanctions against Syria, carrying Iranian crude oil. The United Kingdom's Ambassador to Iran, Robert Macaire, is summoned in Tehran over the incident, which Iran describes as an "illegal seizure".
The Iranian government announces an emergency in southwestern provinces threatened by flooding and worked to evacuate dozens of villages as forecasters predicted more of the heavy rains that have killed at least 45 people last week.