Jordan’s prime minister on Sunday said a number of officials had been sacked as he blamed “negligence” for a toxic gas leak that killed at least 13 people. A tank of chlorine gas fell as it was being loaded by crane onto a ship in Jordan’s Red Sea port of Aqaba last Monday, releasing the toxic substance. At least 13 people, including five Vietnamese nationals, were killed and more than 260 others injured, according to the latest official toll. An investigation showed “great deficiency and negligence in safety measures for dealing with hazardous materials in the Aqaba port,” Prime Minister Bish…