PHILADELPHIA (CBS) — Police say four people were rushed to the hospital after a fiery collision in Northeast Philadelphia Thursday morning.

The crash happened on Welsh Road near Alburger Avenue in the Bustleton section around 3 a.m.

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According to investigators, two cars were involved in the crash and at least one of them caught fire. The fire was quickly extinguished.

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Officials said at least three of the victims are teenagers. There’s no word yet on the extent of the injuries.

All roads in the area of the accident are open.

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The crash remains under investigation.