A magnitude 5.9 earthquake struck northwestern Inan early Friday, killing at least five people and injuring 120 others, officials said.
The temblor struck Tark county in Iran's Eastern Azerbaijan province at 2:17 am local time, Iran's seismological center said, reports AP.
A series of magnitude 4 aftershocks rattle the region following the temblor. Those living in the region rushed out of their homes in fear.
The head of Iran's emergency medical services, Pirhossein Koulivand, gave the casualty figures to state television. There were no immediate video or images broadcast from the area.
Rescuers have been dispatched to the region, officials said. It wasn't clear how extensive damage was.
The US Geological Survey said the quake's epicenter was at a depth of 10 kilometers (6.2 miles). Shallow earthquakes tend to cause more damage.
Iran is on major seismic faults and experiences one earthquake a day on average. In 2003, a magnitude 6.6 earthquake flattened the historic city of Bam, killing 26,000 people.
A magnitude 7 earthquake that struck western Iran in 2017 killed more than 600 people and injured more than 9,00.