A woman is evacuated by firefighters from an apartment after the explosion of a bakery on the corner of the streets Saint-Cecile and Rue de Trevise in central Paris on January 12, 2019. - A large explosion badly damaged a bakery in central Paris, injuring several people and smashing windows in surrounding buildings, police and AFP journalists at the scene said. A fire broke out after the blast at around 9am (0800 GMT) in the busy 9th district of the city, which police suspect may have been caused by a gas leak. (Photo by Thomas SAMSON / AFP)        (Photo credit should read THOMAS SAMSON/AFP/Getty Images)
Police: At least 3 killed in Paris gas leak blast
01:02 - Source: CNN
CNN  — 

The body of a woman has been found buried under rubble following an explosion caused by a gas leak in central Paris, bringing the death toll of the disaster to four, a spokesman for the Paris prosecutor told CNN on Sunday.

The blast, which occurred at a bakery at 9 a.m. local time on Saturday, killed two firefighters who were responding reports of the leak, while a Spanish national died hours after the incident in hospital.

“Profound sadness. Standing by the families of victims. The nation shares in their pain,” French Interior Minister Christophe Castaner tweeted after the explosion, adding that 10 people, including a firefighter, were seriously injured and a further 37 were “in a state of relative emergency.”

Pictures from the scene, on Rue de Trevise in the 9th arrondissement of the French capital, showed smashed windows and scattered debris across the street, as fire crews evacuated people from apartments above the bakery.

Firefighters intervene after the explosion of a bakery on the corner of the streets Saint-Cecile and Rue de Trevise in central Paris on January 12, 2019.

“At this stage, we can tell the origin of the explosion is accidental, a gas leak, but we should remain prudent as an ongoing investigation will determine the causes of this,” Heitz said.

Castaner, who visited the scene with Prime Minister Edouarde Philippe and the city’s mayor Anne Hidalgo, wrote earlier on Twitter that the toll of victims “will be heavy.”

More than 200 firefighters were responding to the incident, Castaner wrote. “My first thoughts go to those injured and their loved ones,” he added.

The explosion occurred hours before gilets jaunes (yellow vest) protesters marched through the city for a ninth successive weekend, near the street on which the blast occurred.

Police had earlier advised the public to stay away from the area, and to make space for emergency vehicles.

Gilets jaunes (yellow vest) protesters march through Paris on Saturday, hours after the blast that killed two firefighters.
An injured person is evacuated after the blast.
Firefighters intervene after the explosion.
Fire crews are seen assisting people in apartments surrounding the bakery.

CNN’s Saskya Vandoorne and Arnaud Siad contributed to this report.