Saudi Arabia "must stop" its prolonged efforts to frustrate Iran's efforts to reduce tensions in the Middle East, Iranian Foreign Minister Mohammad Javad Zarif said Wednesday.

"For the past two-and-a-half years, Saudi Arabia has opposed Iran's diplomacy," Zarif said. 

"Saudi Arabia has moved against our efforts and they opposed the nuclear agreement, in line with the Zionist regime," he said, referring to Israel.

"This trend of creating tension must stop."