OLNEY (WPVI) -- A blown transformer knocked out power to parts of Philadelphia's Olney section.
A utility pole caught fire and sparked an explosion on the 1500 block of Grange Street shortly after 2 a.m. Saturday.
[Ads /]
PECO shut off the power while firefighters put out the flames.
No one was hurt.
[Ads /]
Crews are now working to restore power to about 50 customers.