Hamilton, Canada 2019: Firefighters and police attend to a victim of smoke inhalation after an apartment building fire. Rescuing people from a fire.

RFRYC14P–Hamilton, Canada 2019: Firefighters and police attend to a victim of smoke inhalation after an apartment building fire. Rescuing people from a fire.

A policeman, centre right, guards victim bodies outside the collapsed Maxima supermarket in Riga, Latvia Thursday, Nov. 21, 2013. At least 32 people died, including three firefighters, after an enormous section of roof collapsed at a Latvian supermarket in the country's capital, emergency medical officials said Friday. The reason for the collapse during shopping rush-hour Thursday was still not known but rescue and police officials said that possible theories include building's design flaws and poor construction work. (AP Photo/ Maris Morkans)

RM2N64H8H–A policeman, centre right, guards victim bodies outside the collapsed Maxima supermarket in Riga, Latvia Thursday, Nov. 21, 2013. At least 32 people died, including three firefighters, after an enormous section of roof collapsed at a Latvian supermarket in the country's capital, emergency medical officials said Friday. The reason for the collapse during shopping rush-hour Thursday was still not known but rescue and police officials said that possible theories include building's design flaws and poor construction work. (AP Photo/ Maris Morkans)

Firefighters and rescue workers search for victims at the site of an under-construction flyover after it collapsed in Kolkata, India, March 31, 2016. REUTERS/Rupak De Chowdhuri

RM2E6GBHA–Firefighters and rescue workers search for victims at the site of an under-construction flyover after it collapsed in Kolkata, India, March 31, 2016. REUTERS/Rupak De Chowdhuri

RF2M04NTG–An emergency helicopter is loaded with an injured person by firefighters and health workers after having a traffic accident.

RFJGMPTY–firefighters rescued the injured after a tragic car accident

RMRYC14D–Hamilton, Canada 2019: Firefighters and police attend to a victim of smoke inhalation after an apartment building fire. Rescuing people from a fire.

Rescue workers carry a stretcher with a victim outside the Maxima supermarket in Riga, Latvia, Friday, Nov. 22, 2013. At least 32 people died, including three firefighters, after an enormous section of roof collapsed at a Latvian supermarket in the country's capital, emergency medical officials said Friday. The reason for the collapse during shopping rush-hour Thursday was still not known but rescue and police officials said that possible theories include building's design flaws and poor construction work. (AP Photo/ Roman Koksarov)

RM2N64HGH–Rescue workers carry a stretcher with a victim outside the Maxima supermarket in Riga, Latvia, Friday, Nov. 22, 2013. At least 32 people died, including three firefighters, after an enormous section of roof collapsed at a Latvian supermarket in the country's capital, emergency medical officials said Friday. The reason for the collapse during shopping rush-hour Thursday was still not known but rescue and police officials said that possible theories include building's design flaws and poor construction work. (AP Photo/ Roman Koksarov)

RM2CN2G4K–Firefighters and rescue workers search for victims at the site of an under-construction flyover after it collapsed in Kolkata, India, March 31, 2016. REUTERS/Rupak De Chowdhuri

RFJGMPN0–Firefighters help the wounded with the stretcher after a road accident

RM2N64HHH–Rescue workers carry a stretcher with a victim outside the Maxima supermarket in Riga, Latvia, Friday, Nov. 22, 2013. At least 32 people died, including three firefighters, after an enormous section of roof collapsed at a Latvian supermarket in the country's capital, emergency medical officials said Friday. The reason for the collapse during shopping rush-hour Thursday was still not known but rescue and police officials said that possible theories include building's design flaws and poor construction work. (AP Photo/ Roman Koksarov)

RM2CPN8X8–Firefighters and rescue workers search for victims at the site of an under-construction flyover after it collapsed in Kolkata, India, March 31, 2016. REUTERS/Rupak De Chowdhuri

A medical worker uses a defibrillator to treat a victim of a roof collapse the Maxima supermarket in Riga, Latvia, late Thursday, Nov. 21, 2013, as other rescuers gather around. At least 32 people died, including three firefighters, after an enormous section of roof collapsed at a Latvian supermarket in the country's capital, emergency medical officials said Friday. The reason for the collapse during shopping rush-hour Thursday was still not known but rescue and police officials said that possible theories include building's design flaws and poor construction work. (AP Photo/ Maris Morkans)

RM2N64HD3–A medical worker uses a defibrillator to treat a victim of a roof collapse the Maxima supermarket in Riga, Latvia, late Thursday, Nov. 21, 2013, as other rescuers gather around. At least 32 people died, including three firefighters, after an enormous section of roof collapsed at a Latvian supermarket in the country's capital, emergency medical officials said Friday. The reason for the collapse during shopping rush-hour Thursday was still not known but rescue and police officials said that possible theories include building's design flaws and poor construction work. (AP Photo/ Maris Morkans)

RM2CK9T2M–Firefighters and rescue workers search for victims at the site of an under-construction flyover after it collapsed in Kolkata, India, March 31, 2016. REUTERS/Rupak De Chowdhuri