One Afghan child was killed and four people were wounded Saturday in a blast targeting a Canadian convoy in southern Afghanistan.

Authorities say a vehicle rigged with explosives blew up on the side of a highway in Kandahar province as the military convoy passed. Earlier, police had reported that a suicide bomber was involved in the attack.

A NATO statement said two other children, one Afghan adult and a NATO soldier were wounded in the blast. Officials say the wounded Afghans were members of the same family.

The attack occurred on the highway that serves as the main link between western Afghanistan and Kandahar.

Some information for this report provided by Reuters, AP and AFP.