Afghan officials say a group of suicide bombers has attacked a police base in the eastern city of Jalalabad, killing at least five officers.
Police say at least seven militants were involved in the early Tuesday assault. The Taliban immediately claimed responsibility.
The attack came as U.S. Secretary of State John Kerry made a brief visit to the country. Kerry met with President Hamid Karzai in Kabul Monday. He is expected to hold a series of private meetings before leaving Tuesday.
U.S. and Afghan leaders are discussing the U.S. role in the country as the international military operation winds down. Most foreign troops are due to leave by the end of 2014.
Australia, an original member of the U.S.-led coalition, said Tuesday most of its 1,550 troops will come home by the end of the year, when a major international military base in Uruzgan province closes.
Australian Defense Minister Stephen Smith described the move as "natural," saying it was made after consultations with Afghan authorities.