Two people were hurt when part of a building under construction collapsed Thursday morning on Stuart Street.
It could be several days before crews are able to reach a crane that is stuck in the river.
A construction crane on the Boston University Bridge partially tipped over on Tuesday.
The crane just missed hitting two buildings connected to the Joslin Diabetes Clinic.
A state trooper was released from the hospital Friday morning after he was hurt in a crash during a detail escort late Thursday night.
Boston fire officials rescued an injured worker stuck in a crane on Monday morning.