An eyewitness reports how she experienced the accident. An expert explains the collapse of the structure.

Rescue workers are looking for missing people who survived the collapse. In the middle of the night, a container ship rammed one of the support pillars - the bridge collapsed a few seconds later. The cause of the collision is still unknown. The bridge was more than 50 years old and a good 2.5 kilometers long. It crossed the mouth of the Patsapsco River and was built in the 1960s.