A suicide bomber blew himself up outside a US-funded aid office in southern Afghanistan on Friday, injuring a policeman, after security forces shot and wounded him, officials said.
Police in Lashkar Gah, the capital of insurgency-hit Helmand province, were following the attacker after a tip-off and asked him to surrender, provincial police chief General Mohammad Nabi Mullahkhail told the agency.
"The police called on him to stop and shot him after he refused. He detonated explosives strapped to his body after being wounded," Mullahkhail said.
The blast happened close to the offices of the Alternative Livelihoods Programme, a non-governmental organisation funded by the US Agency for International Development (USAID), officials said.
One of the policemen who confronted the bomber was wounded in the incident "but we luckily managed to prevent him from his evil attempts," the police chief said.
Helmand saw the worst of a Taliban-led insurgency in 2006, which claimed over 4,000 lives in Afghanistan, most of them militants.