Nerve agents found at US military base

Traces of nerve agents and mustard gas have been found in three locations at a US base in Uzbekistan, including a hangar where a headquarters had been set up.

Traces of nerve agents and mustard gas have been found in three locations at a US base in Uzbekistan.

Thousands of US troops have moved through or been stationed in Karshi Khanabad, a former Soviet air base now used in support of the campaign in Afghanistan.