Iran has questioned claims by the US and its allies that the Syrian government has used chemical weapons.The country's foreign minister, Mohammad Javad Zarif, said he has "serious doubts" over whether such allegations "can be verified".He called for an investigative team to be deployed to perform chemical tests, questioning reports that such weapons were used in an attack on the Syrian town of Khan Sheikhoun in April. Last month, a report by a chemical weapons watchdog confirmed that the nerve gas sarin was used in the attack, which left at least 86 people dead including 30 children.

IRAN CASTS DOUBT ON SYRIAN CHEMICAL ATTACKS