We've just heard from Maryland Governor Wes Moore and other senior officials - and it's clear that at the moment there are still many questions unanswered.
We do know that for now the focus continues to be on the search and rescue effort, rather than on what exactly happened and whether it could have been avoided.
The search is ongoing for six people, while one was rescued and is now in hospital. Another person who was involved did not go to hospital. All of them, it appears, were fixing potholes on the bridge when the crash happened.
Moore seemed still to be recovering from the shock. Like many people the BBC has spoken to today, the governor said he was having a difficult time grasping the magnitude of the disaster - saying it "shakes us".
"For 47 years it's all we've known," he said of the bridge. "It's heartbreaking."