4 killed, 68 missing as gas blast partially destroys residential building in Russia (VIDEOS)
The blast rocked the apartment complex on Monday at around 6am local time, completely collapsing one of its sections, videos from the scene show.
The disaster left at least four people dead, according to local officials. Another four, including a child, were rescued from the rubble and hospitalized with injuries.
Some 110 residents were registered as living in the apartment complex, and the fate of 68 remains unclear, Deputy Governor Oleg Klimov told reporters. In total, 48 apartments were damaged.
The tragedy was caused by a gas explosion, the regional office of the Federal Security Service (FSB) confirmed.
A woman living on the fourth floor of the building told Ruptly news agency that she was woken up by a loud bang and saw that all the windows in the apartment were shattered. She immediately detected a strong smell of burning.
“I made a wet cloth mask for my kids, quickly dressed them in warm clothes and grabbed some of my documents,” she said.
“We went out right onto the rubble. The whole section of the building was gone.”
“We thought an earthquake had happened!” another witness said.
“All the windows were broken – on the balcony, in all the rooms. We heard people screaming.”
Some 469 rescuers and 66 pieces of equipment were deployed to the scene. Additional teams, including psychiatric specialists and K-9 units, are being brought from all over Chelyabinsk Region and neighboring Bashkortostan Region.
НАЈНОВИЈА ВЕСТ 3Један део зграде се потпуно урушио од експлозије, која се догодила око 4 сата по локалном времену, видео снимци са сцене. #Magnitogorsk , Русија Урал
Један део зграде се потпуно урушио од експлозије, која се догодила око 4 сата по локалном времену, видео снимци са сцене. 
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While the city has deployed its first-response teams, the Emergencies Ministry remains on a standby to fly four planes from Moscow to deliver more staff to the scene.
President Vladimir Putin has directed the emergencies minister to personally fly to Magnitogorsk and lead the rescue efforts. He also urged the minister of healthcare to undertake all the necessary measures to assist the victims.
The Investigative Committee has launched a criminal probe into the incident.