Angela Middleton, 36, keeps seeing a mysterious cluster of lights outside the window of her Ann Arbor apartment.

She'd like to find out what they are.

"It would be nice to know what's up there hovering in the sky," she said.

File photo.

Middleton told The Ann Arbor News she has repeatedly seen the lights from her fourth floor apartment in the 700 block of Miller Avenue in Ann Arbor. She started seeing them near the end of August and last saw them earlier this week.

Middleton said the lights were very large and bright and looked like a white star with red and blue.

"It just looks like a cluster of lights," she said. "They stand out from stars. For the most part, they came in from the northeast area of the sky. They will come in and find their position and hover. They form a grid over the sky."

While Middleton is quick to point out she doesn't necessarily think the lights are spaceships piloted by little green men, she did report her sightings to the Mutual UFO Network (MUFON).

"I don't think this is alien craft," she said. "I think it's a drone."

Regardless, the organization is investigating the case, but hasn't made any determination about the report's credibility, according to Marie Cisneros, a field investigator for Michigan's chapter of MUFON.

Middleton said she only reported it to MUFON after the Ann Arbor Police Department declined to look into it after repeated calls.

Ann Arbor police told The News an incident was reported to the department at the end of October, however nothing was seen or confirmed by officers. No police report was filed in the case.

The lights generally appear after dark and range from the tops of nearby trees to very high in the sky. Middleton said she's afraid whatever is up there are could be flying in airspace where it's not authorized to be.

"I just want to know what they are," she said.

John Counts covers crime and breaking news for The Ann Arbor News. He can be reached at johncounts@mlive.com or you can follow him on Twitter. Find all Washtenaw County crime stories here.