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.
PECO shut off the power while firefighters put out the flames.
No one was hurt.
Crews are now working to restore power to about 50 customers.
Transformer fire knocks out power to parts of Olney