Libyan authorities allegedly intercepted a cache of mustard blister agent being smuggled to opposition forces in Syria, Arutz Sheva 7 reports.

A separate Israeli news report quotes a Libyan military officer asserting that his country's armed forces had stopped a group of Islamic militants in possession of a container holding the deadly chemical, the news station said on Sunday. The military personnel took custody of the caustic substance, Libyan Col. Mansour al-Mazini added in the report by Israel's Channel 2.

The press claim did not cite the timing of the alleged incident. Libya finished destroying its mustard agent stockpile with international assistance in January, but hundreds of tons of chemical-arms ingredients are still awaiting destruction in the North African country.

Syrian President Bashar Assad's regime agreed to surrender its arsenal of mustard agent and other warfare chemicals in the aftermath of an August nerve gas strike. The government blamed its opponents for the incident, and Moscow has joined its Damascus ally in holding rebel forces responsible for the attack on opposition-controlled territory.

The Syrian government also has placed blame on its opponents for slower-than-expected progress in the disarmament operation, which was to have removed the regime's entire chemical arsenal from the country by early last month.

Norway's military released footage of a transport vessel removing the first batch of Syrian chemical-warfare materials in January as part of the disarmament operation, the Washington Post reported on Friday.