PHILADELPHIA (CBS)—Police in Bucks County say they have made an arrest after legal fireworks sent a home up in flames last week.

It happened on June 3 around midnight in the 500 block of Stevens Road in Morrisville.

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Lisa Nollie was home with her dog when she heard several blasts.

“I heard the fireworks and then I said wait a minute then I seen this big orange flame,” Nollie recounted.

Within moments, the house and cars in the driveway were burning. Nollie called her husband and raced upstairs to rescue her elderly dog

“Then my neighbor shot into the house and he grabbed me and grabbed the dog and we got out,” Nollie said.

That heroic gesture is now overshadowed by the investigation into what caused the fire.

Authorities: Teens Using Fireworks May Have Caused Bucks County Blaze

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Like Nollie, witnesses describe hearing fireworks going off moments before the fire was discovered around the same time another one was lit on a porch of neighboring home, authorities say.

“They were terrorized by them. Basically fireworks and placing them on their porch and letting them go off and then they run,” said Nollie.

Kelly Johnson says a couple of weeks ago a firework landed in her yard.

“It was shot off, hit a roof, so you don’t think anything of it…but now you hear this down the street and that is unfortunate,” she says.

Abraham Keita

On Thursday, police tell CBS3 they arrested Abraham Keita and that more arrests are expected

Investigators say Abraham Keita and two buddies believed they were just fooling around, throwing legal fireworks that they illegally shop lifted, at homes in the neighborhood. But Lt. Hank Ward says the situation turned serious and dangerous when Keita and the boys arrived at 531 Stephens Road.

“He admitted that he threw fireworks into an open carport on the side of the house. It ignited with those flammable materials and the entire house caught on fire,” said Ward.

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Police plan to charge four juveniles, ages 12-16, along with Keita.