Blast reported outside Hamid Karzai International Airport in Kabul

An explosion took place outside the Kabul airport on Thursday as the United States and other countries try to evacuate their citizens and Afghans at risk from the Taliban.

The blast happened at one of the entry gates of the Hamid Karzai International Airport and appears to be a suicide attack, according to three US officials.

Crowds of Afghans have been gathering at the gates trying to gain access to the airport, which has become the only way out of the country since the Taliban took over Kabul.

Tens of...