This story originally appeared on 6abc .

Firefighters are working to put out a blaze after several SEPTA buses caught fire Thursday morning.

The fire broke out around 6:20 a.m. in the 2400 block of Roberts Avenue in Philadelphia’s Nicetown–Tioga section.

Police say as many as 20 buses are on fire at the Roberts Yard.

Thick, black smoke could be seen billowing in the air.

There has been no word on any injuries.

This is a developing story and will be updated.

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