A British security official said both attacks were carried out by suicide bombers.
- Western governments have repeatedly warned of an imminent attack by Islamic State and urged their citizens not to approach the airport. After the blasts, the U.S. Embassy told all Americans to leave the entrances to the airport immediately.
- The explosion at the Abbey Gate of the airport was the result of a complex attack, Pentagon press secretary John Kirby said. He said another blast occurred near the Baron hotel adjacent to the airport.