It may sound out of this world but Thames Valley Police has dealt with 15 reports of aliens in just four years.
All of the cases were reported between 2011 and 2014 across the force area.
They include three sightings in Milton Keynes, two in Oxford, five in Reading, two in Slough and one in High Wycombe.
Residents in Chipping Norton have even claimed to have spotted little green men twice – and were so concerned they called the police force for help.
Back in 2007, UFO expert Michael Soper claimed the Thames Valley area was becoming an alien hotspot.
“It is quite active,” he said.
“There are more paranormal events in Oxfordshire than in any other part of the country and they can be dramatic.
“We have had a landing near Wallingford.
“I think we are being visited by dimensional craft.
“I don’t know whether they come from another race of humans from another dimension.”
But the number of UFO sightings reported to police has decreased, according to a Freedom of Information Act request by our colleagues in Banbury.
In 2011, Thames Valley Police received seven calls concerning aliens.
Just three years later (in 2014), the number had dropped by more than a third with only two calls reporting aliens.
But Michael, of Contact International UFO Research based in Wheatley, is expecting a boom in reports soon.
He added: “I do expect reports of sightings of UFOs to pick up because we’re coming up to a period of change in the solar cycle.
“People do still informally report sightings to us.
“Our view is that these things are happening all the time, what varies is people ability to see them and inclination to report them.”