Afghan officials say a suicide car bomber has attacked a convoy of coalition troops in the capital, Kabul.
The Taliban has claimed responsibility for the attack.
In a separate incident Saturday in southern Afghanistan, NATO says an individual wearing an Afghan National Army uniform turned his weapon on Afghan and coalition forces.
ISAF reports the shooter was killed in the incident.
Meanwhile, authorities say a female suicide bomber in eastern Afghanistan blew herself up outside the local branch of Afghanistan's intelligence agency.
Officials say the woman targeted the National Directorate of Security in Asadabad in Kunar province Saturday.
The French news agency says two guards were wounded in the attack. At least 15 people have been killed in the days attacks.