Two professors at the American University of Afghanistan in Kabul were kidnapped early Sunday, officials said.
An Afghan security official said five gunmen wearing military uniforms captured an American and an Australian. The incident happened close to the university, according to Kabul police chief Abdel Rahman Rahimi.
Australia's Department of Foreign Affairs and Trade said in a statement that its embassy in Kabul was seeking to "verify reports of the kidnapping."
Three other foreigners who were kidnapped in Kabul in the past year have been released.
An Australian woman, Kerry Jane Wilson, was abducted in the easte city of Jalalabad in April. Her whereabouts are unknown.
No group has claimed responsibility for the kidnapping.
The Associated Press contributed to this report.