An earthquake of magnitude 5.5 struck 200 km southwest of the Iranian city of Zahedan at a depth of 26 km, Iranian Seismological Center reported on Friday.

Iran press/Iran- "The affected area is 80 km (50 miles) from the nearest town. Our units have not reached it yet, and locals have not reported anything yet," Abdolrahman Shahnavazi, the provincial head of disaster management, told state television.

The head of the country’s emergency services, Pirhossein Koulivand, told the television that rescue teams, including a helicopter-borne unit had been sent to the area but had yet to report any damage or injuries.

Iran sits on major fault lines and is vulnerable to near-daily earthquakes.

A magnitude 7.3 earthquake hit Kermanshah province, western part of Iran along the border with Iraq on November 12, 2017, killing at least 569 people and injuring more than 9.000 in numerous districts of the province.

In 2003, a 6.6-magnitude quake flattened the historic city of Bam, killing 26,000 people.