KABUL — Roadside bombs and a suicide bomber killed 20 people in a spate of attacks across Afghanistan on Thursday, officials said. In one of the attacks, 10 civilians, including a child and four men, died as their vehicle struck a land mine in southern Helmand province. Seven other people in the group — which was heading to a wedding — were wounded in the blast, said an official. A suicide bomber on a motorcycle blew himself up amid a police patrol in Kandahar, killing the three policemen.And five troops died when their convoy hit a land mine in Laghman province. Also Thursday, two boys were killed by a roadside bomb in Zabul province, offiials said. — AP