"An explosion hit the Iran-Turkey natural gas pipeline in the eastern Turkish province of Agri last night and Iran has stopped gas flow to that country immediately after being informed of the incident," Hamidreza Araghi said, as quoted by the local Fars News Agency.
He added that Iran had suspended supply to Turkey awaiting notification of the cause of the incident.
Iran is Turkey’s second largest natural gas supplier, after Russia. Ankara buys some 10 billion cubic meters of Iranian gas annually, and the country’s total gas consumption amounts to about 50 billion cubic meters.
Until the 2013 ceasefire, the pipeline was a target of frequent attacks by the Kurdistan Workers' Party (PKK), a political group created to support self-determination for Turkey's Kurds and listed as a terrorist organization by Ankara.
On Saturday, the PKK announced that Ankara “unilaterally terminated" the ceasefire by carrying out airstrikes on the group’s training camps and bases in northern Iraq on Friday.
