At least 13 people have been killed and 18 others injured in a car bomb attack in Afghanistan's southern province of Helmand, officials have said.

Omar Zwak, spokesperson for the Helmand Governor, said that the attack targeted a military vehicle in the district of Nawa, an area that has seen heavy fighting in recent weeks.

He added, "The victims included both soldiers and civilians," adding, "It comes one month after Afghan security forces said they had recaptured Nawa from the Taliban."