A Pennsylvania woman captured a video of what she calls a UFO on Monday night, according to ABC News.

Stephanie Wilkerson was on her porch in Lower Paxton Township when she spotted something in the sky.

"I thought it was a plane until I realized it wasn't moving," Wilkerson told ABC. "I watched it for about 20 minutes and I started noticing it changing colors."

Then Wilkerson took out her cellphone and recorded the object in the sky. She also called her neighbor and asked him to take a look for himself.

The neighbor, who first thought the mysterious object was a planet, grabbed his binoculars and said, "No, it changed yellow. That is not a planet," Wilkerson said.

Wilkerson said she is "scared to death now."

But Wilkerson and her neighbor aren't the only ones who saw the "UFO." A few police officers also saw it that same night after responding to Wilkerson's 911 call, according to ABC News.

"He went there and apparently saw them too, so he called his sergeant and his corporal to come and verify what he was seeing," Lower Paxton Township Police Lt. Gary Seefeldt told ABC.

The police officers reached out to two local airports, Fort Indiantown Gap and Harrisburg International,  and the National Guard training center, but found that neither had records of any flight activity on that night, ABC 27 reported.

And the sightings didn't stop there.

According to Wilkerson, she saw the object again Wednesday, and another neighbor claims to have seen a UFO last week, too.

The sightings have changed Wilkerson.

"For me to see that, I am now a believer in UFOs," she said.

AccuWeather, on the other hand, offers explanations of various weather events that often look like UFOs.