Afghan security forces patrol the site of a deadly suicide bomb attack in Kabul, Afghanistan, on Wednesday, May 31. The blast struck near the German Embassy, according to Afghan officials. SHAH MARAI/AFP/Getty Images

A wounded man is helped away from the scene of the attack, which struck in the midst of Kabul's morning rush hour. SHAH MARAI/AFP/Getty Images

Women covered in blood stand dazed in the aftermath of the attack near Kabul's highly secure diplomatic area. SHAH MARAI/AFP/Getty Images

An injured man receives aid following the attack. SHAH MARAI/AFP/Getty Images

Bystanders help evacuate people from the area of the explosion. SHAH MARAI/AFP/Getty Images

Security forces gather near the site of the attack. Massoud Hossaini/AP

People help an injured man following the attack. Rahmat Gul/AP

Victims' bodies are placed in the back of a police truck at a hospital in Kabul. WAKIL KOHSAR/AFP/Getty Images

Office workers leave the site of the suicide attack. German Foreign Minister Sigmar Gabriel said the attack was "aimed at civilians and those who are in Afghanistan to work with the people there for a better future of the country." Massoud Hossaini/AP

German and Afghan authorities inspect the scene of the blast. German Foreign Minister Sigmar Gabriel said the attack was in the "immediate vicinity" of the nation's embassy. "In the attack, officials of the German Embassy were also injured. In the meantime, all employees are safe," Gabriel said. HEDAYATULLAH AMID/EPA

Volunteers carry the body of a victim to the Wazir Akbar Khan Hospital in Kabul. WAKIL KOHSAR/AFP/Getty Images

A mangled vehicle is lifted out of the wreckage after the explosion. HEDAYATULLAH AMID/EPA