I’m only going from the video in the first post, but it looks like lights are on the ship until it hits the bridge, then the bridge falling on the ship shuts the lights down.
CNN reporting vehicles fell into the water and they’re searching for up to 20 people. The water is COLD!!!
EDIT: In the video above, there are lights on the ship, but it could be emergency lighting, available via battery power with a main power cut.
Not sure, hard to tell, but it does look like the ship is moving directly towards the support.m, so possibly not under rudder/steering control.