Possibly the tanker truck going north took exit 30, which is a downward ramp and left turn under I-95, overturned and caught on fire.
You called it
https://6abc.com/amp/fire-i95-traffic/13368736/
“ — A tanker fire underneath Interstate 95 northbound in Philadelphia has caused part of the highway to collapse.
The highway is currently shut down.
The fire broke out just after 6 a.m. Sunday between exit 32 to Academy Road and exit 30 for Cottman Avenue.”
I believe that section of I-95 is almost all new.