<div><span style="font-size: 1rem;"><b>At least three people were killed and around 12 others severely injured on Monday in a gas cylinder blast in a building in Pakistan's southern port city of Karachi, the rescue service said.</b></span><br></div><div><br></div><div>Salman Naseer, an official of the rescue organization Edhi Foundation, told Xinhua that the accident took place in Machar Colony area when new gas cylinders were being shifted to a shop of cylinders beneath a double-story residential building.</div><div><br></div><div>Soon after the blast, the building suddenly turned into rubble, he added.</div><div><br></div><div>The locals of the area immediately started rescuing the trapped people and were then joined by the rescue workers, Naseer said, adding that up to 15 trapped people had been recovered while at least one was still under the rubble. - Xinhua</div><div><br></div><div>bnbd24/fas</div><div><br></div>