A four-lane concrete bridge being built across the River Ganges in the east Indian state of Bihar has collapsed for the second time in just over a year, once again raising questions about the quality of its construction.

Video shows the 3-kilometer (1.8-mile) bridge dramatically crashing into the river on Sunday, sending a plume of debris and dust into the sky and waves rippling across the holy river.

The Sultanganj Bridge has collapsed twice since construction began in 2017, the first time in April last year before Sunday’s catastrophic failure. It’s not clear why the bridge collapsed last year or if those problems had been rectified.

Crowds of people on the river bank can be seen filming the bridge and shouting as it tumbles down. CNN has not been able to confirm reports of any injuries.

On Monday, Bihar’s chief minister Nitish Kumar said he had ordered an inquiry into the incident.

In a statement Monday, the Canadian design and engineering firm behind the bridge, McElhanney, it was aware of the “partial collapse” of the bridge and is “deeply concerned” about the safety and well-being of those affected by the incident.