PORT RICHMOND - Fire investigators are trying to figure out what sparked a smoky blaze in Philadelphia's Port Richmond section.
Chopper 6 HD was over the 3000 block of Agate Street after 2 p.m. Friday.
Crews battled the blaze from the roof of a row home.
At one point, the flames were so intense that smoke could be seen at Penn's Landing, more than 3 miles away.
So far, there is no word on any injuries.
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