Protective bund of Tarbela Dam tunnel collapses, triggering water surge
<p>SWABI: A rock mass collapsed at the Tarbela Dam 5th Extension Project construction site on Monday, causing a surge of water to enter downstream work areas.</p> <p>An emergency was declared following the collapse, construction work was suspended and workers were directed to move to safer areas.</p> <p>The Water and Power Development Authority (Wapda) said