One Park Slope resident emailed us to describe a surprising scene unfolding this morning on 4th Street between 6th and 7th Avenues.

I went out for my coffee around 10am and there were 4 white undercover SUVs, an NYPD emergency truck and a large, black DEP/HAZMAT truck/mobile unit parked on my street! When I came back from my coffee run I saw a Fire Dept. SUV parked at the 6th Ave end of the block and a car from the Office of the Chief Medical Examiner… A moment ago I saw a few passersby noticing the high volume of vehicles and they pulled out phones and cameras. Someone in the Medical examiner's car honked the horn and shouted out "no pictures." I asked the people from the ME's car what was going on, but they said they couldn't say anything and that I should call the 78th Precinct for more info…There's also an ambulance now.