Pakistani officials examine a train damaged by a fire in Liaquatpur, Pakistan, Thursday, Oct. 31, 2019. A massive fire engulfed three carriages of the train traveling in the country
Pakistani officials examine a train damaged by a fire in Liaquatpur, Pakistan, Thursday, Oct. 31, 2019. A massive fire engulfed three carriages of the train traveling in the country's eastern Punjab province (AP Photo/Siddique Baluch)
PHOTO: Siddique Baluch/AP
Now playing
00:50
Dozens dead after canister explodes on train
Mike Pence remarks vpx
Mike Pence remarks vpx
PHOTO: Senate TV
Now playing
02:27
New timeline shows just how close rioters got to Pence and his family
MyPillow notes
MyPillow notes
PHOTO: Jabin Botsford
Now playing
02:21
Photographer snaps notes of MyPillow CEO after visiting Trump
PHOTO: CNN
Now playing
02:31
Teachers feel pressure as schools weigh in-person classes
Now playing
04:59
Ex-intel chief reacts to disturbing Capitol attack details
Staffer White House move out
Staffer White House move out
PHOTO: CNN
Now playing
01:36
Moving trucks spotted at White House as staffers clean out their desks
southern california january strong winds low humidity fire conditions weather santa ana winds_00000000.png
southern california january strong winds low humidity fire conditions weather santa ana winds_00000000.png
Now playing
01:19
Fire weather prevalent across Southern California
PHOTO: CNN
Now playing
02:34
Blizzard, rain, and snow to hinder Central and Eastern US weekend weather
PHOTO: POOL
Now playing
00:48
Pence makes surprise visit to Capitol to thank National Guard
FBI Director Christopher Wray speaks during a virtual news conference at the Department of Justice on October 28, 2020 in Washington, DC.
FBI Director Christopher Wray speaks during a virtual news conference at the Department of Justice on October 28, 2020 in Washington, DC.
PHOTO: Sarah Silbiger/Getty Images
Now playing
03:47
FBI director speaks publicly for first time since Capitol riots
PHOTO: From Public Report / Jeremy Lee Quinn
Now playing
01:39
Video from inside Capitol raises questions for investigators
A man receives a dose of the Moderna coronavirus disease (COVID-19) vaccine at a vaccination site at South Bronx Educational Campus, in the Bronx New York on January 10, 2021. (Photo by Kena Betancur / AFP) (Photo by KENA BETANCUR/AFP via Getty Images)
A man receives a dose of the Moderna coronavirus disease (COVID-19) vaccine at a vaccination site at South Bronx Educational Campus, in the Bronx New York on January 10, 2021. (Photo by Kena Betancur / AFP) (Photo by KENA BETANCUR/AFP via Getty Images)
PHOTO: KENA BETANCUR/AFP/Getty Images
Now playing
02:25
Coronavirus cases surge as states struggle to vaccinate
CNN
CNN's Salma Abdelaziz reports from inside the first hotel in the country to have been converted into a overflow hospital to treat patients.
PHOTO: CNN
Now playing
03:21
See inside the first UK hotel converted into a Covid-19 ward
House impeachment 217
House impeachment 217
PHOTO: CNN
Now playing
02:08
See historic moment House reaches enough votes to impeach Trump
PHOTO: Pool
Now playing
01:25
Pelosi speaks for first time following Trump's historic 2nd impeachment
Trump new video
Trump new video
PHOTO: White House Photo
Now playing
07:36
Trump releases video condemning violence after second impeachment
(CNN) —  

At least 70 people were killed and 30 more injured in a fire that engulfed a train in Pakistan on Thursday morning, after a gas canister that passengers were using to prepare breakfast exploded.

The train was passing through the town of Rahim Yar Khan, in the south of Punjab province, when a stove blew up, causing a fire which spread through the train, according to local police officer Amir Taimoor.

Nadeem Zia, the medical supervisor of District Headquarters Hospital in Liaquatpur, a city in Rahim Yar Khan district, confirmed the death toll.

Footage broadcast on CNN affiliate Geo TV showed a blaze ripping through the carriages, with flames licking out of the windows and sending black smoke billowing into the sky.

Crowds gathered around the dramatic scene, as firefighters, paramedics, and soldiers responded.

An army helicopter was flown to the site from the city Multan to evacuate those who were critically injured, according to the ISPR, a media wing of the Pakistan Armed Forces.

PHOTO: AFPTV

Pakistan’s Prime Minister Imran Khan and President Arif Alvi have both shared their condolences for the victims’ families on social media.

Khan said that he had ordered the launch of an immediate inquiry to be “completed on an urgent basis.”

President Alvi “expressed profound grief on the loss of precious lives in the tragic blast caused by gas cylinder,” in a statement released on his official Twitter account.

“This is a terrible accident and we mourn those who have died,” said Sheikh Rasheed, the country’s railways minister, adding that the families of the dead and injured would receive compensation from the ministry.

PHOTO: AFPTV

Although gas cylinders are banned on trains, passengers were using gas-powered cookers to prepare breakfast inside the train carriage when the explosion occurred, Taimoor added.

He added that many of the people on board the train were heading to a protest in the Pakistani capital of Islamabad, about 800 kilometers (500 miles) from Rahim Yar Khan.

The train was running on the Tezgam line, a daily service that goes from the coastal city of Karachi to the northern city of Rawalpindi.

CNN’s Sophia Saifi contributed to this report from Islamabad.