and when they got there, they found the second story of this three-story row house engulfed in flames and it took them some 50 minutes to put out the fire. as you reported, our affiliate in philadelphia says its sources say that 13 people were killed in this fire. two people are in critically condition. now, this fire happened in the fairmount neighborhood of philadelphia. that's close to the philadelphia art museum. we don't know what the cause is. you can see there that there are fire trucks on the scene on north 23rd street, on the street where this fire took place. but it appears that this fire happened in a three-story row house, started on the second floor, at least that was the heart of this fire. and at this hour, we are waiting official confirmation that 13 people died and two were critically injured. jose? >> what a tragedy.