A bus driver has reported watching and videotaping the three lights forming a triangle pattern slowly crossing the sky.
The video, said to have been recorded at 9.41pm on April 17, has been sent to experts at the Mutual UFO Network (MUFON) which investigates and logs such incidents across the globe.
In a witness report to MUFON, the unnamed man said: “I saw the three lights in a triangle pattern rotating on its axis and wobbling slightly.”
The witness instantly felt that the object was not normal.
He added: “I have been interested in the subject of UFOs since I was about 10.
“I told my mate I’d ring him back and started filming the lights with my phone.
“Due to the street lights my camera was having a hard time focusing on the formation, so I moved closer to the river to get a better view – in some haste since I still had to drive a bus which was going to be there at any moment.”
The witness then shot a video which lasted two minutes and 40 seconds.
He took seven photos and another 41 seconds of video.
He added: “It’s at this point I really had to go back to the bus stop to get my bus. As I walked over, four people got out of a car in the car park and I pointed out the lights to them – to which they showed a bit of interest, but not much.
“I showed the lights to my co-worker who tried to think of any reason they might be something other than a UFO – drone, laser pointers, etc.”
British MUFON Field Investigator Karl Webb is investigating the case.
Triangle UFOs are a mystery that has baffled investigators in the US for years, and appear to be on the rise as revealed by Express.co.uk.
Some people believe they are of alien origin, while others think they are top secret experimental military craft developed in secretive locations such as Area 51 in the Nevada desert.