One person died and three others were injured in the explosion that hit the residential building and an evacuation of the residents is underway, the emergency services said.
"There was a gas explosion in an apartment on Batova Street, in building №5", the authority said.
According to the statement, some parts of the building from the third to fifth floors have collapsed as a result of the blast.
The circumstances of the explosion are being investigated.
Photos and videos of the incident have emerged on social media platforms.
Взрыв газа произошел в жилом доме Ярославля. Несколько квартир обрушились. О пострадавших пока не сообщают pic.twitter.com/Dy8ZQrYqI7— Лента.ру (@lentaruofficial) August 21, 2020
Взрыв газа в Ярославле. Обрушились три этажа жилого дома. pic.twitter.com/pV2TR6aq9F— Sota.Vision (@SotaVision) August 21, 2020
In April, one person died after the partial collapse of a residential building in central Russia's Nizhny Novgorod region following a gas cylinder explosion.
Prior to this, another blast in a five-storey residential house in the town of Orekhovo-Zuyevo, Moscow region, left three people dead and six injured.