Warning: edit containts graphic images.<br/> Afghan police fire towards a building that has come under assault from gunmen and suicide attackers.<br/> Two Afghan guards were killed here when a group of insurgents attacked this private logistics company near a base used by NATO led forces in the western province of Herat.<br/> A government spokesman said five others were wounded when the building came under attack by five suicide bombers, who were all killed.<br/> The Taliban claimed responsibility for the attack, the latest in a string of recent assaults across Afghanistan.<br/> Violence in the country is at its worst since the start of the war 10 years ago according to the United Nations, despite the presence of more than 130,000 troops.<br/> Simon Hanna, Reuters.