U.S. agency releases preliminary report on Baltimore bridge collapse

WASHINGTON, May 14 (Xinhua) -- The cargo ship Dali that hit and destroyed the Francis Scott Key Bridge in Baltimore, Maryland, in March had experienced a loss of electrical power and propulsion before the incident, according to a preliminary report released by the U.S. National Transportation Safety Board (NTSB) on Tuesday.

The report pieces together a detailed timeline of the events that occurred in the time le