A suicide bomber detonated the bomb close to a compound housing foreign contractors at around 9 a.m. local time (04:30 GMT), the TOLO broadcaster reported.
The attacker reportedly targeted a vehicle belonging to a private security company. The injured people were local civilians.
Following the explosion, the Taliban movement claimed the responsibility for the incident.
Afghanistan has long been suffering political, social and security-related instability because of the simmering insurgency, including that of the Taliban, Daesh and Daesh-affiliated groups.