More than 24 hours after the Key Bridge collapse, recovery operations continue. Here's what we know

More than a day after the Dali cargo ship crashed into Baltimore's Francis Scott Key Bridge, authorities are still searching for the six people missing in the crash. Cold water temperatures and choppy waters are affecting divers' attempts to find the bodies of those missing, who are presumed dead.

Here's the latest:

• The investigation: A team from with the National Transportation Safety Board went aboard the ship late Tuesday night to gather evidence for their investigation, agency Chair Jennifer Homendy told CNN on Wednesday. There, they obtained the ship's data recorder, or black box.
• No timeline for channel reopening: There is no specific timeline for when ships may be able to move in and out of the channel into the Port of Baltimore, Maryland Gov. Wes Moore says, but he reiterated that it is a priority to get it reopened.
• "Long road to recovery": US Transportation Secretary Pete Buttigieg predicted the restoration effort for the city and port won't be quick. He also warned of supply chain disruptions, saying, "The impact of this incident is going to be felt throughout the region and really throughout our supply chains."
• Coast Guard assessing hazmat threat: The US Coast Guard is examining damaged shipping containers, some containing potentially hazardous materials, from the crashed vessel, according to a US government document obtained by CNN and a US official familiar with the matter.
• Overnight search deemed unsafe: Search and recovery operations were halted overnight due to dangerous conditions, including “very unstable” sections of the steel bridge and shipping containers hanging from the cargo ship, Baltimore City Fire Chief James Wallace told CNN.
• Details emerge on those missing: Local authorities have yet to confirm the identities of those missing but have said they include construction workers who were on the bridge at the time of the collapse. Here's what we know about the six people presumed dead.
• Ship blacked out before crash: Just minutes before impact, there was a “total blackout” of engine and electrical power on the ship, according to Clay Diamond, executive director of the American Pilots Association.
• City remains in state of emergency: As the search operations continue for the missing, Baltimore remains in a state of emergency, Mayor Brandon Scott told CNN. He says he expects it to remain in place for the "foreseeable future."

Read more of the key details about the crash here.