Trouble on the Lexington Avenue local?

There appears to be something going on here at the 77th and Lex station for the #6. 

Cops. 

Fire trucks.

ESU. 

Flashing lights. 

Sirens.

So many uniforms milling around you'd think they were handing out free donuts. Since the subway entrances are all closed down, it's a safe bet that there's someone down there having a really bad day.