India's Supreme Court has expressed shock at the brazen illegal sand mining taking place in the National Chambal Sanctuary (a protected wildlife zone along the Chambal River spanning Madhya Pradesh and Rajasthan), after miners killed a forest guard and undermined the foundations of a bridge linking the two states. A bench of Justices Vikram Nath and Sandeep Mehta said the pattern of events and the absence of any meaningful action pointed to either the failure or the active connivance of the Madhya Pradesh state government. The remarks highlight growing concerns about the destruction of one of India's most ecologically sensitive river corridors, home to endangered gharials and river dolphins.