N Korea 'providing materials to Syria chemical weapons factories'

North Korea has been sending equipment to Syria that could be used in chemical weapons manufacturing, US media report, citing findings by UN experts.

The materials include acid-resistant tiles, valves and pipes, reports say.
An as-yet-unreleased UN report also says Pyongyang's missile specialists have been seen at Syrian weapon-making facilities, the New York Times says.
The allegations come after new reports of chlorine gas being used by Syrian forces, which the government denies.
North Korea is under international sanctions over its nuclear programme.
 Source: bbc