A gunfight occurred between Afghan security forces and unknown attackers at Kabul Airport's northern gate, according to a statement by the German army on Twitter.

In the shootout, which included US and German forces, an Afghan security member was killed and three others were injured. The German army declared that "there were no casualties among the German army soldiers."

Heute Morgen um 04.13Uhr MESZ kam es am North Gate des Flughafens #Kabul zu einem Feuergefecht zwischen afghanischen Sicherheitskräften und unbekannten Angreifern. Eine afghanische Sicherheitskraft wurde dabei getötet, drei weitere verwundet. pic.twitter.com/4FLILE1NVA

— Bundeswehr im Einsatz (@Bw_Einsatz) August 23, 2021

Due to "possible security threats," the US embassy in Afghanistan encouraged US citizens to avoid traveling and instead head to Kabul airport, where evacuations are taking place.

ISIS' threat to Kabul Airport is serious and very dangerous, according to US National Security Adviser, Jake Sullivan, who said yesterday that information from sources on the field leads us to take the ISIS threat very seriously.

The European Union's Foreign Minister, Josep Borrell, has warned that evacuating 60,000 people and Afghans that seek protection by the end of the month would be impossible.