Six workers presumed dead after Baltimore Key Bridge collapse. Here’s everything we know

Rescuers have suspended the search for six individuals who are presumed dead after falling into the water after a container ship collided with Baltimore’s Key Bridge.

Two survivors have so far been pulled from the river. One was transported to a trauma unit and is in a serious condition, while the other had not reportedly suffered any injuries.

However, six others — believed to be members of a construction crew — are still missing and sonar technology has detected that multiple vehicles were also thrown off the bridge and submerged in the water. Relatives have identified two of the unaccounted-for workers as of Wednesday afternoon.

The cause of the collision is still unknown — but a recently recovered ‘black box’ could soon provide some answers.

The Dali container ship is thought to have “lost propulsion” as it left Baltimore port, with the crew alerting Maryland officials they had lost control of the almost 300-metre-long vessel and that a collision was possible, ABC News reported. The governor noted that this warning call saved lives.

The situation was described as a “developing mass casualty incident,” and the governor of Maryland declared a state of emergency. It remained in place one day after multiple agencies waded through cold waters in the darkness of the early hours, searching amid debris for those missing in the aftermath of the horrific collapse.

Here’s what we know about the Baltimore bridge collapse:

At around 1.30am ET local time, the Singapore-flagged vessel Dali struck a column on the Francis Scott Key Bridge, leading multiple parts of the 1.6 mile-long bridge to tumble into the water.

Just moments before the collision, the ship’s crew issued a mayday call. Maryland Gov Wes Moore added that the call