A crane loading chlorine tanks onto a ship in Jordan's port of Aqaba on Monday dropped one of them, causing an explosion of toxic yellow smoke that killed at least 13 people and sickened some 250, authorities said.
Video carried on state TV showed the moment the tank exploded, sending dockworkers scrambling to escape the toxic cloud. Some 200 people were hospitalised.
The Public Security Directorate, which initially described it as a gas leak, said authorities sealed off the area after evacuating the injured and sent specialists in to address the situation.
State-run Jordan TV said 13 people were killed. Al-Mamlaka TV, another official outlet, said 199 were still being treated in hospitals. The Public Security Directorate said a total of 251 people were injured.