U.N. Secretary-General Ban Ki-moon, right, greets Iranian President Hassan Rowhani before a meeting at the United Nations Tuesday, Sept 23, 2014.

U.N. Secretary-General Ban Ki-moon on Monday called on Iran to impose a moratorium on executions after two juvenile offenders were hanged in the past two weeks.

Ban said he was “deeply saddened” by the executions and recalled that Tehran had signed two international conventions outlawing the death penalty for children under 18.

“The secretary-general reaffirms the opposition of the United Nations to the imposition of the death penalty, and calls on the government of Iran to establish a moratorium on executions with a view to abolishing the death penalty,” said a statement from his spokesman.

Fatemeh Salbehi, a 23-year-old woman, was hanged in the province of Fars on October 13 after being found guilty for killing a man she had been forced to marry when she was just 16.

A week earlier Samad Zahabi was hanged in Kermanshah province for shooting a fellow shepherd when he was just 17.

U.N. human rights experts said Iranian authorities did not provide the required notice to Zahabi’s family or lawyer ahead of the hanging.

Ban said he was “concerned that these two executions reflect a worrying trend in Iran,” where he said more than 700 people have reportedly been executed so far this year, including at least 40 publicly.

He said that was the highest total recorded in the past 12 years.

“The majority of executions were imposed for drug-related offenses — crimes that do not meet the threshold of the ‘most serious crimes’ as required by international law,” he said.

More than 160 juvenile offenders are believed to be on death row in Iranian prisons, according to Amnesty International.

Related articles across the web

• UN Secretary General Ban Ki-moon Makes Surprise Appearance at East River Tashlich Ceremony
• Document Shows NSA Spied on Iran U.N. Delegation
• U.N. Secretary-General Ban Ki-Moon tells Stephen Colbert a Muammar Gaddafi story
• DiCaprio, Bono, Zuckerberg added to Global Citizen Festival
• DiCaprio, Malala to grace Global Citizen Festival
• The One Funny Story the U.N.'s Leader Could Tell Colbert
• Ban says UN relying on Leadership Council for solutions to challenges undermining sustainable devt.
• Motivation Mondays: Partnerships For Peace
• UN shocked by Hungary's treatment of refugees
• South Sudan Rebels, Government to Attend Special UN Summit