India, July 2 -- Multiple casualties were reported after a rock collapse at a stone crusher quarry in South Bengaluru on Thursday, with at least seven workers feared dead as rescue teams searched for others suspected to be buried beneath the rubble, officials said. Authorities said official confirmation of the casualties was still awaited.

According to initial information, the incident occurred around 6:30am at the Kaveri Company crusher quarry near Madapatna village in Bengaluru South taluk.

Police said workers had begun their routine shift when a large section of rock detached from the upper portion of the quarry and crashed onto those working below.

Preliminary information indicated that mining activity was underway in the upper sec...