One man was killed and four other people were injured when a gas canister exploded in an apartment building in the East Jerusalem neighborhood of Beit Hanina early Sunday.
One woman was severely injured, while a second man and two children sustained more moderate injuries.
The injured were evacuated to the Hadassah Ein Kerem Hospital in the city.
Firefighters were working to extinguish the flames.
According to initial reports, the explosion occurred when a family returned home from an event and opened the door to their apartment, where the gas had been accumulating in their absence.
Recent months have seen several such incidents in Jerusalem.
Most recently, in March, several people were wounded when a gas canister exploded in a three-story residential building in the Jabel Mukaber neighborhood in East Jerusalem.
In January, a couple and their three-year-old child were killed in a similar blast in the capital’s Gilo neighborhood.