Iranian President Hassan Rouhani condemned Wednesday’s deadly terrorist attack against the Islamic Revolution Guards Corps (IRGC) forces in the southeastern province of Sistan and Balouchestan and said the country will take harsh revenge against the US-Zionist backed terrorists.

“The main root of terrorism in our region is the US and Zionism, and unfortunately, some of the oil-rich countries in this region are also financial supporters of terrorists,” Rouhani told reporters in Tehran.

“Such cowardly crimes will have no effect on the great Iranian nation’s resolve and they will continue to follow the same path they have chosen powerfully,” he stressed

“The Iranian people will never yield to the world powers,” he said, adding that the people have been facing mercenary terrorists since the victory of the 1979 Islamic Revolution.

“We will definitely take revenge for the blood of our martyrs” Rouhani went on to say.

The IRGC’s Quds Base said in a statement that an explosives-laden car rammed into the bus, which was taking the personnel back to their homes.

The attack killed 27 IRGC members and injured 13 others.

The Jaish ul-Adl terrorist group has claimed responsibility for the attack.