The partially collapsed crane is currently swinging from a building on W. 57th street.

Occupants living on W. 57th between 6th and 7th Avenues are being told to stay off the streets and immediately move the lower levels of their buildings before contacting their building safety representative.

Source: @jonathanwald

LINK: NBC has footage of the crane from the top of Rockefeller Center.

A Second Crane Is Broken At The World Trade Center

This seems to be setting a disturbing trend.