One bomb planted by the side of a road in Ghazni province, southeast Afghanistan, hit a minibus early in the morning, the interior ministry said.
"Four innocent civilians, including two children, were martyred in the blast," said the ministry.
A second bomb struck a car in a separate area of the same province, killing three, it added.
Taliban militants are leading a bloody insurgency, now in its 10th year, against Afghan and foreign forces.
Afghan civilians are the biggest victims of the war and improvised explosive devices (IEDs) like roadside bombs are the biggest killers.
A total of 368 civilians died in May, according to figures released by the UN mission in Afghanistan.
Insurgent attacks were blamed for 301 of those. Last year was the deadliest yet in the war for civilians, with 2,777 killed, the United Nations has said.
(Uu.H-AK)
Editor: Priyambodo RH
Copyright © ANTARA 2011
