We did end up going up to Haverstraw from Staten Island for a 1 day cruise & back. On the way up we saw the Helicopter rescue with Police, fire & USCG bosts, cranes, all trying to help? On the wat back we were doing about 24 knots when the USCG Sirens Blaring came alongside & ordered us to stop! They said "The River was closed." I enquired further & they did say it wouldn't be too much longer? I guess they not only still had divers down but were also looking for bodies? Within 30 minutes they opened a slow (no wake) transit channel off the NY Side. Boats were stacked up pretty thick for a while. I had never seen the River Closed Before?