Kabul, Afghanistan (CNN) -- Violence erupted in Afghanistan on Friday, when a suicide bomber killed a civilian in the north and troops repelled an attack on a base in the east, NATO's International Security Assistance Force said.
A blast near an ISAF convoy in Balkh province in the north heavily damaged a civilian bus traveling behind the convoy. Along with the one dead, 15 were wounded.
Warfare has long plagued eastern and southern Afghanistan, but attacks have risen in the north in recent months.
"Despite their guidance to avoid harming civilians, the Taliban continue to completely disregard innocent civilian lives with their indiscriminate tactics. Their egregious acts go against religious and normal codes of conduct," said U.S. Army Col. Rafael Torres, an ISAF spokesman.
In the east, a failed attack on Forward Operating Base Gardez in Paktiya province led to the deaths five insurgents and the capture of another.
A vehicle followed by four suicide-vest-wearing insurgents tried to breach a fortified part of the base.
Troops destroyed the vehicle, disrupted the attack, and killed attackers trying to flee. Coalition forces were attempting to pursue about 20 other of the attackers.