"Was in shock for the rest of the day" - Black Diamond-shaped UFO Appears in Photograph

• When: August 24th, 2016 at 6:45 AM
  
• Where: Letterkenny, Northern Ireland
• What: Black diamond or triangle-shaped object appears in daytime photograph

A vacationer visiting an Irish town had an unusual  urge to photograph the sunrise and when viewing the photographs later, was shocked to see a black diamond-shaped UFO appear in just one of them. Is this just a photo anomaly? Or could this be a real, inter-dimensional or super speedy craft?

At family holiday home in ( very remote) County Donegal,Ireland. I awoke unusually early (6:30am) and instantly alert. Decided to video and photograph the sunrise, something I have never done? Took several pictures and videos before and after object appeared in photo, with no resulting foreign/unexplained objects. Nothing appeared in the sky at any time. My instant reaction was that perhaps my iPhone camera was broken? However couldn't understand how pics immediately before and after photo in question, didn't have a huge black triangle (apparently hovering in sky?)
Was in shock for the rest of the day.

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