The area has had several natural gas explosions over the last week. Natural gas geysers have erupted in the area, forcing evacuations and sparking fires. It is bubbling up from the ground in some areas. A state of emergency has been declared.
Authorities estimate there are nine blowholes.
The geysers have erupted along the east side of town. An explosion Thursday injured at least three people and forced hundreds to leave their homes and businesses. Gas was shooting up as much as 30 feet above ground. Police believe the gas was dug up during salt mining in the area and it is now moving through the city along water lines. It could be rising up through 300-foot brine wells that were dug to mine salt.