At least 34 people have died and 80 are injured in Pakistan after a powerful earthquake struck near the country's border with Iran, sources tell CNN.
Army doctors and Frontier Corps paramilitary forces are taking part in rescue efforts in Mashakel, according to a Pakistani official involved in relief efforts.
Officials earlier said that dozens more were injured in both countries.
Akbar Hussain Durrani, home minister of Pakistan's Balochistan province, confirmed that six people had died and more than a dozen were injured in the province's Washuk district.
The quake injured a dozen people in southeastern Iran, authorities said. They were treated at a hospital, the Crisis Management Office of Sistan and Baluchestan province reported. No one was killed, said Reza Arbabi, the office's director.
Sistan and Baluchestan province borders Pakistan and Afghanistan.
Earlier Tuesday, Iran's semiofficial Fars news agency quoted a politician from the province as saying that 40 people had been killed in the earthquake.
However, Arbabi and Sistan and Baluchestan Gov.-general Hatam Narouie disputed that there were deaths.
Fars later quoted Narouie as saying, "Fortunately, the quake did not cause any deaths or serious property damage. Telephone lines are now working, and water and electricity (are) normal."
Narouie told Fars that the news outlet should rely only on information from the crisis office.
Damage in Pakistan
The quake destroyed more than 50 shops in the Washuk district, Durrani said.
The U.S. Geological Survey said the earthquake was preliminarily measured at 7.8 magnitude. The Iranian Seismological Center said the earthquake had a magnitude of 7.5.
"Thank God it doesn't appear that there is too much destruction," a disaster official said on a broadcast by Iran's IRIB from the city of Khosk.
The official described seeing five injured people and some cracked or collapsed walls but no sign of major damage.
The Iranian Red Crescent has dispatched five assessment teams to the region, the aid group said Tuesday.
State of emergency
The epicenter of the quake, which struck about 3:15 p.m. local time, was about 50 miles (80 kilometers) north of the city of Saravan, according to the Iranian Seismological Center.
A state of emergency has been declared in the Saravan area, and rescue workers have been deployed from other provinces, Iran's state-run IRNA news agency reported.
"Our teams have been deployed to the area for the first rapid assessment, but they have not reported back yet," said Hassan Esfandiar, head of communications for the Iranian Red Crescent.