Foreign Minister Mohammad Javad Zarif has urged the United Nations help to secure the release of Iranian border soldiers abducted by Sunni extremists, media reported Thursday. Zarif sent a message to UN chief Ban Ki-moon Wednesday evening demanding action from the international community, saying "mere condemnation of acts of terrorism is **t e**ugh". His urgent plea to the UN chief came after Jaish-ul Adl, the rebel group operating in southeast Iran, claimed to have killed one of the five abducted soldiers and threatened further executions. The young soldiers, who were serving their 24-month mandatory military service, are believed to have been taken into neighbouring Pakistan after being kidnapped in February.