**A bomb attack in the western Afghan city of Herat has killed at least 12 people and injured many others, officials say.**They said the attack had targeted a police convoy, killing and wounding both police and civilians.
Insurgent attacks on security forces have mounted in the run-up to the presidential election on 20 August.
However, attacks came mainly in the south where Taliban rebels have their strongest presence.
Police spokesman Raouf Ahmedi said the explosion on Monday in Herat was detonated by remote control, AP reported.
Another police official, Esmatullah Alizai, told journalists that the bomb had been left in a roadside rubbish bin.
“It exploded as the convoy of district police passed by,” he said.
He was also cited as saying that two police officials, a woman and child were among those killed, and that the district police chief had been seriously injured.
A reporter for the AFP news agency saw several police vehicles and private taxis damaged by the blast.
Motorcycles and bicycles were strewn over the site, while children’s shoes and a woman’s veil had been abandoned there, he said.
Are you in the area of the attack Did you see what happened Send us your story using the form below.