This was a very difficult fire. As you can imagine, the apartment is quite large, we are 50 stories up. The rest of the building had a considerable amount of smoke. 200 Firefighters and EMS members are on scene -#FDNY Commissioner Nigro gives update on 4th alarm, 721 5th Ave MN

— FDNY (@FDNY) April 7, 2018

The fire is still not considered to be under control because of the smoke conditions on all the floors above -#FDNY Commissioner Nigro gives update on 4th alarm, 721 5th Ave Manhattan

— FDNY (@FDNY) April 8, 2018